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MHT CET202121 Sep 2021Morning ShiftPhysicsCenter of Mass, Momentum and CollisionActual

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

Options

  1. AM m
  2. Bm + M M
  3. CM-m M+m
  4. Dm M

Correct answer

D. 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 aligned & mv = Mv & v ^ v = m M aligned Coefficient of restitutions, e = Re lative velocity after collision Relative velocity before collision = v ^ v = m M

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