Find an expression for the weight of a body at the centre of the earth?
Find an expression for the weight of a body at the centre of the earth?
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g d =g (1 − d/R)
At the centre of the earth d=R
Hence g centre = g (1 - R/R)
G centre = 0
Weight = mg centre
Weight = 0 i.e. weight of a body at the centre of earth is weightless.
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