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Homework Help: Background Physic

  1. Apr 24, 2006 #1
    What is the background physics of "bouncing a ball?
    Momentum and impulse are the background physics but is there any thing else?
  2. jcsd
  3. Apr 24, 2006 #2


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    You may also wish to consider energy.

  4. May 21, 2006 #3
    More specifically, with energy and collisions there is a dimensionless quantity called the coefficient of restitution. This number is a ratio of KE after the collision to that of the KE before the collision. Thus if the initial first bounce had a KE of 10J at the ground and the coefficient of restitiution was 0.6, then on the ball's way back up, it would be leaving the ground with a KE of 6J (the other 4J are dissipated mostly into heat, vibrations, and material deformation)
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