Principles of Physics 11th ISV Edition · Kinetic Energy and Work · Problem 44
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Walker, Halliday & Resnick — Kinetic Energy and Work: Problem 44
44 A skier is pulled by a towrope up a frictionless ski slope that makes an angle of 12° with the horizontal. The rope moves parallel to the slope with a constant speed of 1.0 m/s. The force of the rope does 880 J of work on the skier as the skier moves a distance of 7.0 m up the incline. (a) If the rope moved with a constant speed of 2.0 m/s, how much work would the force of the rope do on the skier as the skier moved a distance of 8.0 m up the incline? At what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 1.0 m/s and (c) 2.0 m/s?
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주어진 조건: 44 A, 1.0 m, 880 J, 7.0 m, 2.0 m, 8.0 m
구하는 것: (a) If the rope moved with a constant speed of 2
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Principles of Physics · 11th ISV Edition
저자: Walker, Halliday & Resnick
출판사: Wiley
단원: Kinetic Energy and Work