The potential energy of a body of mass 0.5 kg increases by 100 J when – InterviewSolution

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1.

The potential energy of a body of mass 0.5 kg increases by 100 J when it is taken to the top of a tower from ground. If force of gravity on 1 kg is 10 N, what is the height of the tower ?

Answer»

Potential energy = (m g) h

100 J = (0.5 × 10) N × h

h = (100/ 0.5) x 10 = 100/(5/10) x 10 = 20 m

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