If the external force acting on a system have zero resultant, the center of mass :

must not move

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must not accelerate

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may move

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may accelerate

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Solution

The correct options are
C may move
D must not accelerate
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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Similar questions

If external forces acting on a system have zero resultant, the centre of mass

a. may move b. may accelerate

c. must not move d. must not accelerate

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