Question

A man of mass 75 kg lifts a load to a height of 5 metre the same load is carried by young boy of weight 40 kg to the same height.
(i) First find the ratio of work done by the two.
(ii) Second find the potential energy possessed by the boy if he stands at a height of 50m. (take G= 10 m/s^2)​

Answer 1

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Answer 2

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