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Gravitational Potential Energy

A hole is dri...

Question

A hole is drilled along the earth's diameter and a stone is dropped into it. When the stone is at the centre of the earth, it has.

A

Acceleration

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B

Weight

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C

Mass

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D

Potential energy

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Solution

The correct option is C Mass
At the center of the earth everything is weightless as acceleration and potential energy vanish. So it has only mass.

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