A skier of mass 70kg is pulled up a slope by a motor driven
A skier of mass 70kg is pulled up a slope by a motor driven cable. the work required to pul him 60m up a 30 degrees slope , assuming its frictionless, at a constant speed of 2.0m/s is 20.6J. What horsepower must a motor have to perform this task?
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a 556-kg ice skater is moving at 400 ms when she grabs the loose end of a rope the opposite end of which is tied to a
a skier of mass 70kg is pulled up a slope by a motor driven cable the work required to pul him 60m up a 30 degrees
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