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NEET 2010 Physics question

PhysicsSystems of Particles and Rotational MotionNEET 2010

A ball moving with velocity collides head on with another stationary ball of double the mass. If the coefficient of restitution is , then their velocities (in m/s) after collision will be

Answer: (1)

Solution

Let masses be and , , ; let final velocities be , . Momentum conservation: ...(i) Restitution: ...(ii) Adding (i)

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Question ID VK-090466