JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A ball of mass is moving with velocity . It collides head on elastically with a stationary ball of mass . After collision, the velocity of the first ball becomes . The value of the ratio is

Answer: (B)

Solution

For an elastic collision, $'=v = ⇒

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Question ID VK-158653