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Force is required to lift a body from the ground to a height h and work is measured

as the product of force and magnitude of displacement.

a) Name the energy possessed by the body at maximum height. Write an equation for it.

b) A man of mass 60 kg carries a stone of mass 20 kg to the top of a multi-storeyed building of height 50m. Calculate the total energy spent by him? (9.8m/s2)

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