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A skier of mass 64 kg is pulled up a slope by a motor-driven cable.

(a) How much work is required to pull him 55 m up a 30° slope (assumed frictionless) at a constant speed of 1.9 m/s?

(b) What power (expressed in hp) must a motor have to perform this task?

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Category:- Physics
Reference No.:- M91079049

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