Question

A body of mass 2M in motion undergoes a one-dimensional semi-elastic collision with a stationary body of mass 3M. If the final K.E. of the system is 7/16 times the initial K.E. of the system then 1/e is equal to : (e is the coefficient of restitution)










1) 4










2) 6









3) 3








4) 2

Answer 1

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