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in Physics by (69.9k points)

A machine is driven by a 50kg mass falling at a rate of 10.0m in 5s. It lifts n load of 250kgf. Taking the force of gravity on 1 kg mass as 10N. Calculate the power input to the machine. If the efficiency of the machine is 60%, find the height to which the load is raised in 5s.

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Given : Effort E = 50kgf = 50 x 10 = 500N,

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