The increase in gravitational potential energy of an object of mass m raised from the surface of Earth to a height equal to radius R of Earth is -

Question

The increase in gravitational potential energy of an object of mass m raised from the surface of Earth to a height equal to radius R of Earth is -, m g R, m g R 2, m g R 3, m g R 4

MARKS App · Accepted Answer

Increase in potential energy = - G M m 2 R - - G M m R = G m M 2 R = G M R 2 × m R 2 = g × 1 2 m R = 1 2 m g R

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