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April 25, 2014

Homework Help: Physics

Posted by Kensey on Monday, June 18, 2012 at 7:08pm.

A 80 kg skier grips a moving rope that is powered by an engine and is pulled at constant speed to the top of a 25 degree hill. The skier is pulled a distance x = 230m along the incline and it takes 2.3 min to reach the top of the hill. If the coefficient of kinetic friction between the snow and skis is mu_k = 0.15, what horsepower engine is required if 30 such skiers (max) are on the rope at one time?

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