In this investigation, your team will explore the physics in a popped racquetball.
1.
Identify the height that a coiled racquetball reaches after it uncoils on its own. Place it on the floor and let it pop!
2.
Measure the mass of the racquetball and the height of the bubble of the coiled ball.
3.
Produce a set of at least 10 values for the following measures, with times from zero seconds to the time of maximum height. Time,
Height, Velocity, Kinetic Energy (KE), Gravitational Potential Energy
(PE), and Total Energy.
[Note: You need the initial Velocity of the ball.]
4.
Produce the following graphs, with the best-fit model, and the value and units for the Slope and Area.
X-Axis Y-Axis
Time Height
Time
Time
Velocity
PE
Time KE
Height KE
Height PE
Velocity PE
Function Slope Area
Velocity KE
PE KE
5.
How much Energy was stored in the coiled racquetball?
6.
Now drop the coiled racquetball from a height of one meter.
Determine the return height. __________
7.
Calculate the Increase in Potential Energy that results. __________
8.
Does this value agree with the Energy found in the first part?
KE

1
2 mv 2 PE
 mgh KE start

PE end v o
 v start v v gt h
 v t

1
2 gt 2 TotalEnergy

PE

KE
 heat
David A. Young page 1 04/10/2020