Obtain an expression for the potential energy of a body of mass m at a – InterviewSolution

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1.

Obtain an expression for the potential energy of a body of mass m at a height h above the ground.

Answer»

Force due to gravity on the body F = mg

Work done in lifting the body against the force of gravity to a height h above the ground

W = F × d = mg × h = mgh

Thus, potential energy of body = mgh.

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