The radius of earth is R and the acceleration due to gravity at its surface is g the work required in raising a body of mass m to a height h from the surface of the earth will be
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Work done = Change in potential energy
W=GMem[1Re−1Re+h]W=GMem[1Re−1Re+h]
=GMemhRe(Re+h)=GMemhRe(Re+h)
=gR2emhRe(Re+h)=gRe2mhRe(Re+h)[GMe=gR2e][GMe=gRe2]
=mgh(1+hRe)=mgh(1+hRe)
Hence a is the correct answer.
W=GMem[1Re−1Re+h]W=GMem[1Re−1Re+h]
=GMemhRe(Re+h)=GMemhRe(Re+h)
=gR2emhRe(Re+h)=gRe2mhRe(Re+h)[GMe=gR2e][GMe=gRe2]
=mgh(1+hRe)=mgh(1+hRe)
Hence a is the correct answer.
Samaira111111:
I have not given any option and I did not understand what is the answer you sent
that is the answer
but I did not understand plz send me its picture
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