A skier of mass 71 kg is pulled up a slopeby a motor-driven
A skier of mass 71 kg is pulled up a slopeby a motor-driven cable.
(a) How much work is required to pull him40 m up a 30° slope (assumedfrictionless) at a constant speed of 2.2m/s?
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(b) What power must a motor have to perform this task?
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a skier of mass 71 kg is pulled up a slopeby a motor-driven cablea how much work is required to pull him40 m up a 30deg
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