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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A smooth sphere of mass M moving with velocity u directly collides elastically with another sphere of mass m at rest. After collision, their final velocities are v' and v, respectively. The value of v is

Answer: (C)

Solution

Conserving momentum and kinetic energy gives ; (a) and (b) blow up or

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Question ID VK-062374