Physics Fun:
THE INVESTIGATIONS!

The Study of Mechanics, Energy, Force & Motion

**Investigation #1: Zoomerang Coaster **

Mass
of each car
= 1500 pounds or 680 kg

Number
of cars =
7

Maximum
Height
= 36.91 meters Lift 1

35.5 meters Lift 2

Top
of Loop
= 19.325 meters

Total
distance traveled
= 286 meters (1
way)

Diameter
of loop = __________________

Ride
the Zoomerang or watch from the upper midway. Match the statement with the

letter
from the photo above. Letters may be used more than once and there may be

more
than one answer for each statement. Keep in mind that the Coaster zooms

both
frontward and backwards.

_____ 1. Where do you have the greatest
potential energy?

_____ 2. Where do you have the greatest
kinetic energy?

_____ 3. This location is where you have
the greatest velocity.

_____ 4. This location is where you have
the slowest velocity.

_____ 5. This is where you feel almost
weightless.

_____ 6. This is where you feel very
heavy.

_____ 7. Where is work being done?

_____ 8. Where do you feel the greatest
deceleration?

_____ 9. Where so you experience the
greatest G-Force on you?

_____10. This is where the greatest
friction is produced.

Observations
and Calculations:

1. How many riders are on the Zoomerang? Find the
average

number
per ride from 3 runs of the coaster.

1st
trip number

2nd
trip number

3rd
trip number

average
number / trip

2. Use your watch or stopwatch to determine how
long the ride

lasts from loading people to unloading people.

time = _________ seconds = _________ minutes = _______ hours.

3. Based on the time for one ride, calculate how
many rides could

be run in an 8 hour day.

___________ rides

4. Using the average number of people per trip and
the number

of rides per day, how many people could ride the Zoomerang

in:

One Day ? _______
One Season (85 days)? _________

5. Work is the force causing something to be
displaced. W = Fd

a. Calculate the work needed to lift
the Zoomerang to the

top of the first lift hill. Note: For vertical work here, the force

is the weight of the train and
the riders and the distance is the

height Therefore,
W = mgh. Use the max
number of riders

at 63.5 kg each.

b. Power
is the rate of doing work.
Calculate the power needed to

lift
the train to the top of the first hill.

Power = _________ Watts =
__________ horsepower

6. Explain
qualitatively the energy transformation in one complete trip.

Specifically,
consider the energy change from the loading area to the

first peak and then
the change from this point to the end of
the ride.

7.
What measurements must be made to evaluate the maximum

potential energy of the Zoomerang?

a.

b.
Carefully make these measurements and record the results here.

c.
Calculate the maximum potential energy of the Zoomerang

(include riders). Where is the Zoomerang located when it has

potential energy? What is the speed at this point? (Label and

explain your steps).

d.
What is the Zoomerang’s maximum kinetic energy? Where is it

located at this time? What is its speed at this point? (Show work)

e.
Compare the speed calculation obtained in (d) above with the speed

calculation obtained in the next problem. Comment on any

correlation.

It is said that the speed of a roller coaster as it travels through
a

loop depends on the height of the hill from which the coaster has
just

descended. The equation s = 8 √h – 2r gives the speed s in feet per

second, where h is the height of the hill and r is the radius of the
loop.

Using the data assembled at the start of the lab, determine how fast the

Zoomerang travels through its initial “loop.”

8. a. What force or
forces do you feel at the top of the loop?

b.
Draw a free body diagram representing the forces acting on you at:

9. What is the minimum speed
you can have when upside down and not fall

out?
(assuming no restraints). Show your work!

**Measurements**

Your mass = __kg Time
for first car to reach top of first hill

Angle of rise, first hill 0= ‑o Time for first car to travel down
from B to C

*Sensations
(Normal, Heavier, Lighter):*

At B,just before descending

At about halfway down

At C, bottom of the curve

At D, top of the loop

**Observations**

1. What
is the advantage of a long, shallow first incline?

2. Why
is the first hill always the highest?

S. Why
is the track of the roller coaster banked?

4. Where
does your meter read closest to zero?

5. How
do you feel at this point?

6. What
does the near zero reading tell you about the track at that point?

7. Where
does the meter give a maximum reading? Why is it a maximum
here?

**Meter **Readings:

force meter =

force meter =

force meter =

force meter =

**Investigation #2: The Rotor **

1. Below are the measurements
needed to determine the centripetal force on

you or one of your lab partners. Show
forces & velocity on the diagram.

Fill in
the values.

2. From the radius, calculate the
circumference of the Rotor.

3. Calculate the centripetal
acceleration on you, and explain how this relates to

centripetal
force. ( ac = v2/r ; v = Circumference divided by the time for

one trip
around.)

4. G force is a comparison of the
normal force of gravity on you to the force

you experience
in an accelerated frame of reference. A force of 1 g is equal

to your normal
weight in pounds or newtons.

a. What force holds you to the
wall of the Rotor?

b. Explain in detail what this
force is and how it is produced.

c. Calculate
this force on you. (Show
your work.) Fc = mv2/r

d. Calculate the g force
acting on you in the Rotor.

(Fc divided by your weight.)

5. Draw a free body diagram of
the forces acting on you while in the Rotor.

(Label
all forces.)

6. a. If you do not slide down
the wall, what does this tell you about

the force of friction?

b. What is the normal force in
this diagram equal to?

c. Calculate the
coefficient of friction (μ )

**Investigation #3: The Pirate **

Ride capacity (number of Riders)

Approximate
weight (full)

Maximum
height of the Pirate

Radius
of Swing

Weight of Pirate Empty = 14300 lbs or 6490 kg

1. Explain the energy
transformation which occurs when the Pirate is in

operational mode.

2.
Calculate the maximum
velocity of the Pirate and show where this

occurs.
(Show your work).

Answer ________

3. Measure the period of the
Pirate (Use a stop watch and time several

oscillations).

Period =

Calculate the frequency of the Pirate. (Show
all work).

4. Draw a free body diagram of
the forces acting on you when (a) you

are at
the bottom of the swing and (b) at the top of the swing.

5. Using the Pirate as a
pendulum, and the information from above,

calculate
the acceleration due to gravity at this park. (Show your work).

g
=

** **

** **

** **

** **

**Investigation #4: The Carousel **

Note:
Answer the questions based on your position

on
the Carousel. Use two different distances from

the
center.

Data:

Trial
#1 Trial
#2

1.
Your distance from center

2.
Your period of rotation

3.
Your velocity

4.
Centripetal force acting on you

Show your work here:

1. What effect on the
centripetal force did changing your location produce?

2. If you are near the center
of the Carousel, explain what strategy you would

use to throw a
ball to a partner on the outside edge.

3. If the output of the engine
is 25 hp. Calculate the work

required
to turn the Carousel once.

(Note: 1 hp = 550
ft-lbs/sec or 746 watts).

Work _________________

**Investigation #5: The Wildcat **

Data:

Your mass:
______________________ kg

Angle of the first
hill: _______________ o

Time for train to
travel up the first hill: __________________ sec.

Elevation of first
hill = 73’7’’ from grade level (__________ meters)

1. Calculate your average speed going up the first
hill.

2. What is your potential
energy at the top of the first hill? (Show work)

3. How much work was needed to
get you to the first hill?

(Show
work)

4. What force was used to get you to
the top of the hill?

(Show work)

5. The Wildcat track at the
bottom of the first hill is at an elevation of

5’ 2’’
from grade level or _____________ meters. (Show all work)

a. How much potential energy
is remaining at the bottom of the

first drop?

b. How much kinetic energy do
you have at the bottom of the

first drop?

c. Calculate
your velocity at the bottom of the first drop.

First
Turn: Radius of
curvature = _________ feet ( _______ meters)

Elevation = 57’
9’’ or ( _________ meters)

6. What is your velocity in
this turn? (Show your work)

7. Calculate the centripetal
force on you in this turn. (Show your work)

8. Why is the track banked in the
curve?

9. What is the g force on you
in the turn? (Show your work)

End
of Ride:
Time to stop: _______________

Braking point elevation = 21’ 1’’ ( _________ meters)

Braking distance = 250 feet ( _________ meters)

10. What is your velocity at
the braking point? (Show your work)

11. What is your
deceleration? (Show your work)

**Investigation #6A: Wave Swinger **

1. Estimate
the radius of the circle traveled by a chair in the outer ring as the

ride
operates

2. Using the above value,
calculate the distance (circumference) traveled by the

chair in one revolution.

3.
Calculate the linear speed of the moving chair.

4. Estimate the mass of the
chair and the average rider.

5. What is the centripetal
force needed to keep the chair with rider moving in a

circle? ( Assume the swing chair has a
mass of 9 kg.)

6. Measure or estimate the
angle between the chair chains and the

vertical.

7. What is the tension needed
in the chain to supply the centripetal

force in
Question #5?

8. Diagram the ride at the following times:

a. at rest

b. when it is
moving, but not tilted

c. when it is
moving and tilted.

Is there
any difference in the radius?
Please explain.

9. Determine the length of the entire chain.

10. What causes the swings to move
out as the wheel turns?

11. Where does “down” appear to the riders?

12.
Describe the reasons for the different sensations on the ride at the

following points:

a. when moving, but not
tilted.

b. going down when tilted.

c. going up when tilted.

13.
Measure the period of a swing when:

a. moving and not tilted.

b. moving and tilted.

14.
How does the angle of an empty swing compare with the angle of an

occupied one at
the same radius? Does the mass of the rider seem to

make any
difference?

15.
Although the hub is rotating at a constant rate, it does not seem that

way when the ride
is tilted. Indeed, your tangential velocity is NOT

constant. Why?

16. Determine the tangential
speed at which the outer swing is moving

when the hub is moving and tilted. Give the answer for both the
bottom

and top of the orbit.

17. Determine the tangential
acceleration of the outer swing when the hub

is moving and tilted. Give the answer for both the bottom and top
of

the orbit.

18. Find the centripetal force
of an empty swing when the hub is moving and

tilted. Give the answer for
both the bottom and top of the orbit.

19. The swing angle is the
difference of the vector combination of the

gravitational and centripetal forces. Calculate the theoretical
angle

the swing should have (when the ride is not tilted), and compare it

with the measured value.

20. Calculate the
gravitational, centripetal, and tensional forces acting on

the swing when you are in it. Do this for the following four cases:

a. at rest

b. moving, but not tilted

c. moving, tilted, and at the
top of the orbit.

d. moving, tilted, and at the
bottom of the orbit.

How do
these compare with the same quantities when the swing is

empty?

**Investigation #6B: The American Flyers **

The
American Flyers

are
similar to the Wave Swinger in that the cars

swing
out away from the axis of rotation during

the
ride. The American Flyers are different

because
the rider controls the amount of the

swing
by positioning the “sail” on the front of

the
vehicle.

1. Estimate the mass of the
car and passenger.

2. Estimate or find the period
of rotation.

3. Estimate the radius of the
circle traveled by the “flying car” when

the
passengers do not touch or move the “sail.”

4. Estimate the amount of centripetal
force needed to keep the vehicle flying

in the
circle described in Question #3. Explain.

5. Estimate the amount of
centripetal force needed to make the vehicle

fly as
far as possible from the ride’s axis.

6. Estimate the amount of
centripetal force needed to make the vehicle fly

as close
as possible to the ride’s axis.

7. What is the approximate
outward force that can be provided by the “sail.”

How did
you get this answer?

8. What is the approximate
inward force that can be provided by the “sail”?

How did
you get this answer?

**Investigation #7: Saw Mill Plunge **

**
(A Water Roller Coaster) **

** **

Reminder:
Use the information provided by your teacher concerning the bench marks
for

hard-to-measure locations.

**Data and Measurement: **

Length
of boat: 9 ft = ______ meters Mass of
boat: 350 lb = ______ kg

Vertical drop of hill: ______ meters Angle of down hill: ______

Time for whole boat to pass any given

point before going up to
top of hill:
__________ seconds t1

Time for boat to come down
hill:
__________ seconds
t2

Time duration of the splash
at the

bottom of the hill:
__________ seconds t3

Time for whole boat to pass
any given

point after splashing at
bottom of hill: __________
seconds t4

**Observations: **

1. Why is there water on the
slide or hill and not just at the bottom of

the
slide?

2. If there is a great deal of
mass in the front of the boat, is the splash

larger or
smaller than if there is a smaller mass in the front?

If so,
explain.

3. Is there an observable
splash-time difference with greater mass in the

front
than if the greater mass is in the rear? If so, explain.

4. Is there any place on the
ride where riders “lunge” forward involuntarily?

Where
does this occur? Explain why.

**Calculations: **

1. Determine the average
velocity of the log before going up the hill.

2. Calculate the length
of the hill.

3. Determine the average
speed of the log down the hill.

4. Assuming the speed of
the log at the top of the hill is the same as the speed

before the hill, calculate the speed of the log at the bottom of the
hill just prior

to
splashing.

5. Calculate the average
acceleration of the log going down the hill.

6. Calculate your
momentum at the bottom of the hill before splashing.

7. Calculate your
momentum after splashing is complete.

8. Using the time of
splash, calculate the average force you experience during

the
splash.

9. List several purposes
of having water as part of this ride.

10. Compare this ride to a roller
coaster. What are the similarities?

**Investigation #8: Compounce Mt. Skyride **

1. Determine the length
of the Skyride in meters. Describe the method you used

to
determine the total distance (round trip) that a single chair travels during
its

circuit.

2. Observe the ride for
one full circuit (or ride the ride yourself). How long does

is
take for the ride to reach the top of the mountain?

3. How many chairs are
on the Skyride? Each chair can carry up to 4 adults.

Using information from your answers to the above questions, what is
the

average number of people that can ride the chairlift in an 8 hour day if
all

chairs are used?

4. What is the distance
between chairs? Explain how you arrived at your answer.

5. The Skyride is a
continuously moving attraction. If you are on the chair at the

base of the mountain heading upward, is this potential energy or
kinetic

energy?

**Investigation #9: Ferris Wheel **

1. If you were sitting
on a bathroom scale, where on the above diagram would

you
see a greater weight than normal?

2. At which position in
the above diagram would you see a smaller weight?

3. Estimate the maximum
speed of the ride in rpms (revolutions per minute).

4. Does the size of the
Wheel affect your perception of its speed? Why or why not?

5. How many gondolas are
there on the Ferris Wheel?

6. What are the maximum
numbers of passengers that the wheel can carry with

a
capacity of 6 adults or of 8 children per gondola?

_________
adults
________ children

7. Estimate / calculate
the full height of the wheel from its base.

_______ meters

8. Estimate / calculate
the radius of the wheel.
_______ meters

9. Calculate the
circumference of the wheel.

_______
meters

10. If light bulbs are to be placed 6
centimeters apart around the front edge of

the
perimeter (circumference) of the wheel, give a close approximation of

how
many bulbs would be needed.

_____________

11. Compute the mechanical
advantage if the radius of the Ferris Wheel is

12.2 meters and the diameter of the axle is 12.0 inches.

_____________

12. Time 1 complete period (use
a particular chair as your starting point). Find

the height for each angle (use triangulation). Make a data table of angles,

times, and heights from starting point. Label time in seconds and height
in

meters. Plot 1 period of a time vs. height graph.

Angle
time
height

0

π/ 4

π /2

3 π /4

π

5π /4

6π /4

7π /4

2 π

13. Write a sine equation
for your graph.

14. At what height will
the chair used as the starting point be after

15 seconds? Use your equation to answer.

**Investigation
#10: Enterprise **

A
road is banked to differing

angles
and curves based upon

the
speed that cars and trucks

will
use when traveling the road.

The
suspended cars of the

Enterprise
will swing out at

some
angle when they travel

in
a circle. The angle depends

upon
the radius of the circular

path
and the speed of the wheel.

1. Measure the radius of the wheel.

2. Measure the angle each car makes with the
vertical as the wheel

approaches full speed while rotating horizontally. Is each car

uniformly the same angle, regardless of the position around the

wheel?

3. Record your spring accelerometer reading
at the following points of

the ride:

a. at rest

b. at full speed, but
while horizontally oriented.

c. at full speed, but at
maximum vertical orientation

i.
at the top

ii.
halfway down

iii. at the
bottom

iv. halfway up

4. Record your apparent
weight changes (sensations) and compare

with the readings in Question #3.

5. Carefully observe the
angle of each car relative to its suspension point

as
it goes around when the arm is at its maximum vertical elevation.

Why
is it different when approaching the very top from when it is

approaching the very bottom?

6. At what point do you
feel the lightest?

The
heaviest?

Why
is there a difference?

7. Determine the period
of motion when the car is rotating at its

maximum rate.

8. Calculate the
accelerations and the number of g’s experienced

when:

a. at
rest

b. at
full speed, but while still horizontally oriented.

c. at
full speed, but at maximum vertical orientation:

i. at the top.

ii.
halfway down

iii.
at the bottom

iv. halfway up

9. Calculate the force
the seat exerts on you at the bottom when the ride

is
vertical.

10. Draw a force diagram
showing all of the forces acting on your body in

each of the
following situations:

a. at rest

b. at full speed, but
while tilt horizontally oriented

c. at full speed, but at
maximum vertical orientation

i. at the
top

ii.
halfway down

iii. at the bottom

iv.
halfway up

11. Knowing the force
acting on a rider when the car is rotating at top

speed in
a horizontal circle (Question
10b), derive an expression for

calculating
the theoretical angle of tilt of the cars at this speed.

12. Using the results
from Question 11, calculate the theoretical angle of

tilt of the
cars at top speed. Compare and contrast this theoretical

value of
tilt with the measured value.

13. Calculate the
gravitational, centripetal, and tensional forces acting on

you while
you are on this ride. Do this for the following four cases:

a. at
rest

b.
moving, but not tilted

c. moving, tilted , and
at the top of the orbit

d.
moving, tilted, and at the bottom of the orbit

**Investigation
#11: The Bumper Cars **

Participate
in this investigation with a partner.

1. What happens in a
collision to each car when:

a. one bumper
car is not moving?

b. a
rear-end collision occurs?

c. a
head-on collision occurs? (speculate)

d. there
is a collision with a stationary object (the side rail)?

e. cars sideswipe?

2. Describe how you feel
when any type of collision occurs. Are you a well-packaged passenger? Please explain your answer.

3. How is electrical
energy supplied to the bumper cars? Describe the complete circuit for one of the cars.

4. Why do the cars have
rubber bumpers?

5. Mass of the bumper
car:
385 lbs
___________ kg

Mass of rider (you)
___________
lbs
___________ kg

Mass of car and rider ___________ lbs
___________ kg

Total mass of your partner and his/her car
__________ kg

6. During collisions, is
kinetic energy always conserved? Please explain your answer.

7. Is the
mechanical energy (kinetic + potential) of the bumper cars conserved? Please explain your answer.

8. Estimate the average
speed of a bumper car in motion.

9. Estimate the
stopping distance of a bumper car in an average collision. Try to observe the approximate amount of “give” of a bumper car in a number of
different collisions where the car comes
close to stopping after the collision.

10. Find an average negative
acceleration of a bumper car in an
“average” collision. How many g’s is this? (Show your work)

11. Assume that you are
traveling at 2 m/s. for momentum
mv=mv = impulse (f*t)

a.
Calculate the momentum of you and your car.

b.
You collide with a wall and rebound at a speed of 1 m/s.

Calculate the momentum of you and your car after the

collision with the wall bumper. (Keep in mind that momentum

is a vector quantity!)

c. Calculate the change
in momentum of you and your car.

d. Assume that you are
moving at 2 m/s. You strike a wall

bumper and come to a rest in 0.5 seconds. Calculate the impulse

acting on you and your car during the collision.

e.
Calculate the force that caused the change in momentum.

**Investigation
#12: Thunder Rapids Raft Ride **

**Data
and Measurements: **

Mass of raft: 681.8 kg

Radius
of raft: ________
meters

Vertical length of lift conveyor:
_________ meters

Time for whole raft to pass any given

point before going up to top of hill:
________ seconds

Time for raft to cycle the route:
________ seconds

Time duration of the raft in the

load / unload station:
________ seconds

Time for whole raft to pass any

given point after entering the station

until it drops off the conveyor
________ seconds

**Observations:**

1. Why is there water on the slide or hill
and not just at the bottom of

the slide?

2. If there is a great deal of mass on one
side of the raft, is the splash

larger or smaller than
if there is a smaller mass on a side?

If so, explain.

3. Is there an observable splash-time
difference with the greater mass of

a fully loaded raft than
if the greater mass is on one side?

If so, explain.

4. Is there any place on the ride where the
riders “lunge” forward

involuntarily? Where
does this occur? Explain why.

**Calculations: **

1. Determine the average
velocity of the raft before going up hill.

2. Calculate the length
of the conveyor hill.

3. Determine the average
speed of the raft up the hill.

4. Assuming the speed of
the raft at the top of the hill is the same as the

speed before the hill, calculate the speed of the raft at the end
of

the
trough just prior to entering the load / unload station.

5. Calculate the average
acceleration of the raft as it leaves the conveyor.

6. Calculate your
momentum at the bottom of the trough before

entering the load / unload station.

7. What happens to your
momentum as water splashes down on you

at
Lover’s Rock.

8. List several purposes
of having water as part of this ride.

9. Compare this ride to
a roller coaster. What are the similarities?

10. What would happen to the time
length of the ride if the inflatable tubes

were to be over inflated? Under inflated?

*13. _ _ _ ( ( ( ( . . . = = = Boulder Dash *

* *

This
mountain coaster, new in 2000, is marvel of engineering. It is the longest

wooden
roller coaster on the east coast and the only one of its kind, built on a

750
ft. mountain, which forms the western boundary of Lake Compounce Park.

The
course is determined by the mountain topography and designed to disturb

as
little of the natural setting as possible, including the trees, bushes,
ledges,

and
boulders.

The
coaster ride begins in the north end of the Park near the Ferris Wheel

(located
in Bristol) travels to the south end of the Park near the Skyride (located

in
Southington) and back again over 4500 plus ft. of track. For a breathtaking

two
minutes, guests race through dense woods, past rugged rock facing, and

between
large boulders at up to 60 miles per hour.

The
unusual design tries to keep the coaster a hill hugger and very fast. The

speed
doesn’t change greatly during the ride as with most roller coasters. Heavily

dependent
on gravity from the top of the first initial drop on, it maintains a high

range
speed throughout the ride. For true coaster lovers (as well as everyone who

dares
to ride), a deluxe assortment of other specialties complete the unparalleled

ride.
In amusement park lingo, your experience might include sideways jogs,

bunny
hops, ejector or floater airtime, laterals, and a feisty 180-degree

turnaround.

In
short, Boulder Dash may be one of the coolest psychologically thrilling rides
in

the
world. Because you are actually riding on a real intact mountain, many

unexpected
“blind” surprises may have your hair standing on end.

Now,
that you know the scoop, give it a try!

**Data:
**

One train: Mass
of each car:
1134 kg

Number of cars:
6

Capacity of one train: _____________

Your Mass: ______________
kg

Total distance traveled: 4672 ft.
= _________meters

Total time of ride:
_________ seconds

Time from loading to unloading: _________ seconds

Estimate height of first hill:
_______ ft = _______meters

Estimate angle of first hill: _______

Time to climb first hill: ___________
seconds

Estimate
height of largest drop hill: ______ ft =_____meters

Time to descend largest drop hill: _________
seconds

1. Calculate the distance up the first
hill.

2.
Calculate your average speed going up the first hill.

3. What is your potential energy at the top
of the first hill?

(Show your work.)

4. How
much work was needed to get you to the first hill?

5. What force was used to get you to the top
of the hill?

6. From observation: Does relatively the same
speed appear to be maintained throughout

the ride ?
How about as the rider?

7. Did the speed appear to be faster because
of the boulders and trees?

8. Were there any backward leaning
zones?

Any forward leaning
zones?

9. What
percentage of your ride appeared to be airtime?

Compare your estimate
with those of your classmates.

10. Compare your adventure on Boulder Dash to
that of the Wildcat and/or the

Zoomerang.

a. On
which coaster did you experience less sideward g forces?

b. On
which coaster did you have more airtime?

c. Did you experience
differences in speed?

Congratulations!
You are now officially a bold, brave, bona fide Boulder Dasher!

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14. A heart pumping, adrenaline
flowing, white knuckled, and literally hair raising experience, DownTime

is a vertical drop tower with
attitude and turbo action.

After the guests are seated,
the cart is raised slightly and weighed.
Then it is steadily lifted to the top

of the tower where it is locked
in brakes. Stationary for a few
seconds, the cart is then abruptly

launched toward the ground with
chilling negative g-force acceleration.
The ride softens with a

bungee like bounce before
reaching the bottom of the tower and rebounds for a few soft bounces

before descending slowly back
to the ground. Air pressure, power
cylinders, pistons, and air powered

brakes work in harmony with
each other to provide guests with some exciting ups and downs.

Whether you’re a watcher or a
rider, DownTime is an interesting phenomenon to investigate.

1. How many guests can the ride accommodate?

2. Why do you think the cart needs to be weighed?

3. Measure the overall cycle time of the ride from start to
finish to gain perspective about

the ride. You’ll need a watch with a
second hand or one with a stopwatch mode.

4. Measure the time it takes for the cart to be lifted to the
top of the tower. Start measuring
at the

end of the weigh sequence.

5. Measure the time of the
cart’s turbo descent Start
immediately after release of the braking

mechanism.
Hint: Don’t look away or you’ll miss it! Stop just as the cart is ready to bounce.

6. Calculate the height of the DownTime tower (including the
flagpole) using triangulation.
The

distance from the center DownTime tower
panel to the right front corner of the retail building

(facing building) is 83.79 feet = ______
meters. (Reminder: The height of
the ride = height from

sighting + height of your eye.)

7. Calculate the height of the DownTime tower (excluding the
flagpole).

DownTime is **185 **

through which all the action
occurs.) The **first bounce** occurs about **40 feet up** the tower (from

height without flagpole).The
empty cart weighs approximately 2000 lbs.

185 ft = _______m 165 ft =
_______m 40 ft =
_______m 2000 lbs =
_______kg

8. Calculate the average speed of the cart moving up the tower
(begin end of weigh sequence).

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9. Calculate the average speed of the cart moving back down
toward the ground (begin release to

just as cart is entering first
bounce).

10. Calculate the momentum of cart filled with riders (140 lb
average), as it is entering first bounce.

11. Consider the
following overview of the DownTime ride cycle, filling in the blanks as you
proceed.

A. Load/unload passengers: Cart is at tower bottom. Air pressure in all components except
the

air supply tank is at ambient.

B. With the cart lifted
slightly and held at constant height, the weight is established. The ride

control system determines the
______________________ required to accomplish the desired

ride action.

C. The cart is dispatched and
moves from bottom to top of tower.
The “up-valve” admits air into

the power _________ to
accomplish this. The air admitted into the cylinders acts on the top

side of the ________ and drives
them downward. The passenger cable
system lifts the cart in

proportion to ___________ movement. Air is exhausted from the “dump-valve
and exhaust”

located on the bottom of each
cylinder.

D. The cart is latched in the
air-powered ______________ at the top of the tower. As the cart is

held, the air In the upper
portion of the cylinders and main valve is vented to atmosphere

through the port valve filters,
and calculated ________________ is introduced into the bottom

side of power cylinders and the
turbo tank.

E. Cart launch: The brakes
release the cart and air pressure accelerates the cart downward with

an initial acceleration of
approximately ______ g. The power
cylinders top side begins to build

pressure. The power cylinders bottom side begins
to dissipate pressure.

F. The cart reaches the bottom
of the first bounce about 40 ft up the tower as air is compressed

by the pistons. Passenger cart acceleration loading
attains its _________vertical acceleration

of approximately _____ g. The air pressure in the upper
portion of the power cylinders and

the main valve reaches its
___________. This pressure depends
on the _________________.

G. The cart bounces softly
several times and descends slowly back to the ground.

14. If DownTime was a free fall drop tower rather than a turbo
drop tower, what differences would

you expect to find in the
ascent and descent? Consider time,
speed, and g forces.

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*You’re done?! Had fun?! Then
you’ve earned some Down Time! *

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To
aid in triangulation measurements, 4 “bench marks” have been placed in the

Park
at carefully measured distances from hard-to-measure locations, as follows.

1. A yellow marker can be found on the
rail of the fence in front of the

Zoomerang, facing the loop. It is exactly 107’ 7” from a point directly
under

the center of the
Loop. It is also 185’ from a point
under the starting end of

the Track (Lift 1).

2. A nail has been driven into the asphalt
directly in front of, and 100’ from

the Pirate. It is at the intersection of perpendicular
lines from the lamp post

in front of the
Pirate and a nearby lamp post in front of the Twister.

3. To gauge the drop height at the Saw
Mill Plunge, a stone marker is in the

grass lawn with trees
in front of the water pumps at the lift slope, outside

the fence, and up the
stone=walled terrace. The marker
is 75 meters

horizontally from a
point under the top of the drop hill.
The ground at the

marker is 1 m below
the water level at the bottom of the drop hill.

4. Another nail has been placed into the
asphalt in front of the raised garden

with Carousel horse)
in the entrance Plaza. It is
aligned with the highest

point of the first
hill of the Wildcat roller coaster and is 7’ 4” from the garden

wall when facing and
aligned with the flag atop the Wildcat.
The nail head is

186’ from a point
below the highest elevation of the Wildcat.

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