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A sphere of mass m moving with a constant velocity u hits another stationary sphere of same mass. If e is the coefficient of restitution, then ratio of velocitiesv2v1 of the two spheres after collision will be

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Detailed Solution

Applying conservation of linear momentummu=mv1+mv2 u=v1+v2 ......1The coefficient of restitution e=v1−v2u .......2Solving these two equations, we get v1=1+e2u v2=1−e2u ∴v2v1=1−e1+e

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