Question

What will be the nature of motion of centre of mass of a system when total external force acting on the system is zero?
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Answer 1

Answer:

If the external force acting on a system have zero resultant, then the total momentum remain . constant i.e conserved. Hence, the center of mass remains at rest or move with a constant velocity.

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Answer 2

Answer:

If the external force acting on a system have zero resultant, then the total momentum remain . constant i.e conserved. Hence, the center of mass remains at rest or move with a constant velocity.

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