A metal ball falls from a height i m onto a steel plate and jumps up to a height of0.81 m. Find the coefficient of restitution.
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Since v = √(2as) = √(2gs) here g = 9.8 m/s^2
v for a 1m fall is √19.2
v for a .81m bounce is √(.81 x 19.2) = 0.9√19.2
so, the coefficient of restitution is 0.9
i hope it will help you
regards
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