Posted by **Mohanad** on Wednesday, March 26, 2014 at 2:32am.

A 0.240-kg billiard ball that is moving at 3.00 m/s strikes the bumper

of a pool table and bounces straight back at 2.40 m/s (80% of its original

speed). The collision lasts 0.0150 s. (a) Calculate the average force

exerted on the ball by the bumper. (b) How much kinetic energy in joules

is lost during the collision? (c) What percent of the original energy is left

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