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NEST2014PhysicsCenter of Mass, Momentum and Collision

A girl of mass 50 kg jumps from the shore onto a stationary boat of equal mass floating on a still pond. She jumps back to the shore almost immediately. Her speed in both cases is 2 ~m / s with respect to the shore. Consider her entire motion to be horizontal and in one dimension. Ignore friction and drag forces. The speed of the boat with respect to the shore after she jumps back is

Options

  1. A1 ~m / s
  2. B2 ~m / s
  3. C3 ~m / s
  4. D4 ~m / s

Correct answer

D. 4 ~m / s

Step-by-step solution

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