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November 27, 2014

Homework Help: Physics

Posted by sandhu on Saturday, September 12, 2009 at 5:52pm.

A tennis ball is dropped from 1.41m above the ground. It rebounds to a height of 0.932 m.The acceleration of gravity is 9.8 m/s2 .(a)With what velocity does it hit the ground?(Let down be negative.) Answer in units of m/s. (b)With what velocity does it leave the ground? Answer in units of m/s. (c)If the tennis ball were in contact with the ground for 0.00575 s, find the acceleration given to the tennis ball by the ground. Answer in units of m/s2.
 

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