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Question

Does the center of mass accelerate?


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Solution

Explanation:

The centre of mass of the system only accelerates as:

  1. If external forces are acting on the system.
  2. The total momentum of the system only changes
  3. If there are no internal forces acting on the particles.
  4. The total linear momentum of the system is conserved.

Hence, the centre of mass accelerates, if external forces are acting on the system.


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