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MHT CET202415 May 2024Evening ShiftPhysicsCenter of Mass, Momentum and CollisionActual

A particle of mass m collides with another stationary particle of mass M . The particle m stops just after collision. The coefficient of restitution is .

Options

  1. Am M
  2. BM-m M+m
  3. C1
  4. Dm M + m

Correct answer

A. m M

Step-by-step solution

Let v be the velocity of mass m and v ^ be the velocity of mass M after collision. By law of conservation of momentum, mv = Mv ^ v ^ v = m M Coefficient of restitution = v ₂- v ₁ u ₁- u ₂ Here, v ₁=0 and u ₂=0 e= v^ v = m M

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