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A hollow sphere is held suspended. Sand is now poured into it in stages. The centre of mass of the sphere with the sand

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Remains unchanged in the process

Rises continuously

First falls and then rises to the original position

First rises and then falls to the original position

answer is C.

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Detailed Solution

Initially centre of mass is at the centre. When sand is poured it will fall and again after a limit, centre of mass will rise.

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