What is weight of a body at the centre of Earth?

 
ANSWERS


Zero. It is because the value of gravitational acceleration at the centre of Earth is zero. So, weight. W=m×g =m×0 =0
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Earth is an ellipsis of non uniform mass density. It's surface has valleys and mountains. So a mass placed at center (?) is unequally pulled from all sides, making weight still non zero.
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