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July 24, 2014

Homework Help: physics

Posted by lewis on Monday, December 13, 2010 at 11:44am.

a ball mass 800g is dropped from height of 5m and rebounds to a hight of 3.8m
the air resistance is negligible. calculate

a. the kinetic energy of the ball just before impact
b. the initial rebound speed of the ball
c. the energy transferred to the ground during impact

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