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NEET2013PhysicsCenter of Mass, Momentum and CollisionActual

Assertion : Centre of mass of a system does not move under the action of internal forces. Reason : Internal forces are non conservative forces.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

D. If both assertion and reason are false.

Step-by-step solution

Centre of mass of a body is a point that moves when external forces are applied on the body as though all the mass concentrated at that point and when external forces were applied there.

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