Bouncing
Performed by
Sarin Regmi
Date: 8
th
October 2009
TA:
Brian Howard.
Object of the problem
The object of our problem was to find out how the ratio of horizontal distance covered by
two successive bounces relates to the ratio of the horizontal component of initial velocity
and the height of two bounces when a ball is dropped from a certain height.
We dropped a ball from a certain height, took the videos of the two projectile motions
traced by it and used the video analysis to find the range, height and initial velocity of
ball in each case and hence the required ratio.
Prediction
We started from the mathematical definition of acceleration,
And integrated it twice with respect to time to see how the position depends upon the
change in acceleration and time. We found,
2
(1)
We assumed the upward direction to be positive and defined it to be the yaxis, and the
horizontal plane to be the xaxis.
If T represents the total time of the flight, v the initial velocity and θ the angle velocity
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 Spring '06
 Zudov
 Physics

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