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JIPMER2013PhysicsCenter of Mass, Momentum and Collision

A moving body of mass m and velocity 3 ~km / h collides with a rest body of mass 2 m and stick to it. Now the combined mass starts to move. What will be the combined velocity?

Options

  1. A4 ~km / h
  2. B1 ~km / h
  3. C2 ~km / h
  4. D3 ~km / h

Correct answer

B. 1 ~km / h

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