The coefficient of restitution for a particular ball is 0.7. If he ball rebounds from surface traveling at 60 m/s its collision speed was A) 42 m/s B) 53 m/s C) 85.7 m/s D) 85.7 m/s²

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Quizplus · Accepted Answer

The coefficient of restitution (e) is defined as the ratio of the final velocity (v) to the initial velocity (u) of an object after a collision, i.e., e = v/u. Given e = 0.7 and v = 60 m/s, solving for u gives u = v/e = 60/0.7 = 85.7 m/s.

The Coefficient of Restitution for a Particular Ball Is 0