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A pulley fixed to the ceiling carries a ...

A pulley fixed to the ceiling carries a string with blocks of mass `m` and `3m` attached to its ends. The masses of string and pulley are negligible .When the system is released, its center of mass moves with what acceleration

A

g

B

g /2

C

g/4

D

zero

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The correct Answer is:
C
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NTA MOCK TESTS-NTA NEET SET 43-PHYSICS
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