Question

What will be the weight of an object of mass 175 kg at the centre of the earth

Answer 1

In case of a spherical and isotropic Earth with no Moon or other celestial bodies around, the weight would reduce to zero (a consequence of Gauss’ Law and the fact that gravity is a central force). Otherwise, the weight would be given by the resultant gravitational pool of other celestial bodies and/or the effect of anisotropic mass distribution of the Earth. The effect of Earth’s anisotropy and/or presence of other celestial bodies on the weight depends on the mass of the object.

Answer 2

• It would be zero.

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