The work done in shifting a particle of mass m from the centre of earth to the surface of the earth is
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Given,The mass of the particle be m,
Initilly it is on the centre of the earth, so
The work done in moving a particle from center of earth to its surfaceW=∫R0Fdr
=GMm2R,we know that F=GMmR2=mg
So, The work done in shifting a particle of mass from the centre of the earth to the surface of the earth is =mgR2.
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