Assuming that the gravitational potential energy of an object at infinity is zero, the change in potential energy (final – initial) of an object of mass m, when taken to a height h from the surface of Earth (of radius R), is given by,
A. \(\frac{\text { GMm }}{R+h}\)
B. – \(\frac{\text { GMm }}{R+h}\)
C. \(\frac{\text { GMmh }}{R(R+h)}\)
D. mgh
Answer:C
Assuming that the gravitational potential energy of an object at infinity is zero, the change in potential energy (final – initial) of an object of mass m, when taken to a height h from the surface of Earth (of radius R), is given by,
A. \(\frac{\text { GMm }}{R+h}\) B. – \(\frac{\text { GMm }}{R+h}\) C. \(\frac{\text { GMmh }}{R(R+h)}\) D. mgh