A 0.240-kg billiard ball that is moving at 2.95 m/s in the positive direction strikes the bumper of a pool table and bounces straight back at 2.35 m/s. The collision lasts 0.0150 s. 1. Calculate the component of the average force along the direction of the original motion, in newtons, that is exerted on the ball by the bumper during the collision. Fave= 2. What is the change in kinetic energy, in joules, during the collision? ΔKE 3. What percent of the initial kinetic energy remains in the system after the collision? KEf/KE0 (%)=

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