A skier of mass 79 kg is pulled up a slope by a
A skier of mass 79 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 1.8 m/s?
? J
(b) What power must a motor have to perform this task?
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a skier of mass 79 kg is pulled up a slope by a motor-driven cablea how much work is required to pull him 55 m up a
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