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A skier of mass 60.4kg, starting at rest, is pulled up a slope by a motor-driven cable. How much work is required to pull him

A skier of mass 60.4kg, starting at rest, is pulled up a slope by a motor-driven cable. How much work is required to pull him a distance of 54.7m up a 42.3 slope (assumed frictionless) at a constant speed of2.1m/s? Use g=9.8m/s2. Give your answer to the nearest Joule.

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