November 24, 2015

Homework Help: physics

Posted by Physics,help. on Wednesday, April 6, 2011 at 7:09am.

A tennis ball of 60g is dropped from a height of 2.0m,It rebounds but loses 25% of its kintic energy as thermal energy.Ignoring air resistance,calculate
(1)the kinetic energy of the tennis ball when hits the ground.
(2)the height reached on the ground

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