What is the coefficient of restitution (e)? a) Ratio of final to initial relative velocities b) Ratio of initial to final relative velocities c) Ratio of final to initial velocity of a body d) Product of initial to final relative velocities

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A: we take Pi and Pf% difference=Pi-PfPi×100

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A: True

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Q: For what value of e is a collision perfectly elastic? a) 1 b) 2 c) 0.5 d) 0

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