Questions
What is the weight of a body at a distance 2r from the centre of the earth if the gravitational potential energy of the body at a distance r from the centre of the earth is U
detailed solution
Correct option is C
W=mg=mGMR2 U=GMmr or GM=(Ur/m)∴ W=mUrm×1R2=mUrm×1(2r)2 =U4rTalk to our academic expert!
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