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NEET2012PhysicsCenter of Mass, Momentum and CollisionActual

Two persons of masses 55 ~kg and 65 ~kg respectively, are at the opposite ends of a boat. The length of the boat is 3.0 ~m and weighs 100 ~kg . The 55 ~kg man walks up to the 65 ~kg man and sits with him. If the boat is in still water the centre of mass of the system shifts by

Options

  1. A3.0 ~m
  2. B2.3 ~m
  3. Czero
  4. D0.75 ~m

Correct answer

C. zero

Step-by-step solution

Here on the entire system net external force on the system is zero hence centre of mass remains unchanged.

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