Question
A body of mass m is moved from surface of the earth to a height equal to radius of the earth. Find the increase in gravitational potential energy of mass.
Solution
Gravitational potential energy at the surface of the earth is,
Gravitational potential energy at height R from the surface of the earth is,
Change in potential energy,
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Gravitational potential energy at height R from the surface of the earth is,
Change in potential energy,
