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A skier is pulled by a towrope up a frictionless ski slope that makes an angle...

A skier is pulled by a towrope up a frictionless ski slope that makes an angle of 12 degrees with the horizontal. The rope moves parallel to the slope with a constant speed of .0m/s. The force of the rope does 900J of work on the skier as the skier moves a distance of 8.0m up the incline.

(a) If the rope moed with a constant speed of 2.0m/s, how much work would the force of the rope do on the skier as the skier moved a distance of 8.0m p the incline? At what rate is the force of the rope doing work on the skier when the rope mves with a speed of (b) 1.0m/s and (c) 2.0m/s?

The answers are: (a) 900, (b) 110, and (c) 230, but I cannot figure it out.

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