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Assuming earth as a uniform sphere of radius R, if we project a body along the smooth diametrical chute from the centre of earth with a speed v such that it will just reach the earth's surface then v is equal to
detailed solution
Correct option is A
(KE+PE)1=(KE+PE)212mv2−32GMmR=−GMmRv=GMR=gR2R=gRTalk to our academic expert!
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A shell of mass M and radius R has a point mass m placed at a distance r from its centre. The gravitational potential energy U (r) vs r will be
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