WBJEE 2017 Physics Solved Paper
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Question : 40 of 40
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A small steel ball bounces on a steel plate held horizontally. On each bounce the speed of the ball arriving at the plateis reduced by a factor e (coefficient of restitution) in the rebound, so that
V u p w a r d = e V d o w n w a r d
If the ball is initially dropped from a height of 0.4 m above the plate and if 10 seconds later the bouncing ceases, thevalue of e is
If the ball is initially dropped from a height of 0.4 m above the plate and if 10 seconds later the bouncing ceases, thevalue of e is
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