A body weighs 60 kg on the earth's surface. What would be its weight at the centre of the earth?

60 kg-wt

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6 kg-wt

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\times

9.8 kg-wt

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zero

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Solution

The correct option is D zero
The weight at the centre of the earth would be zero. As the body moves closer to the centre of the earth the mass of the earth between the centre of the earth and the body keeps decreasing. This causes the force acting from the centre of the earth on the body to decrease.

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