A 0.20-kg object with a horizontal speed of hits a wall and bounces directly back with only
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(a) What percentage of the object’s initial kinetic energy is lost: (1) 25%, (2) 50%, or (3) 75%?
(b) How much kinetic energy is lost in the ball’s collision with the wall?
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a The answer is Since K o m v o 2 reducing v to v ...View the full answer
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Ankit Yadav
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