A skier of mass 70.0 kg rides a ski lift to the top, which is 500 m higher than the base of the lift. (a) Find the increase in the skier’s gravitational potential energy. (b) Find the minimum work done by the force exerted on the skier by the lift. (c) When the skier skis down the run, what would her final velocity be if no force other than gravity did work? What other forces do work?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 88AP: Consider a particle on which a force acts that depends on the position of the particle. This force...
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A skier of mass 70.0 kg rides a ski lift to the top, which is 500 m higher than the base of the lift. (a) Find the increase in the skier’s gravitational potential energy. (b) Find the minimum work done by the force exerted on the skier by the lift. (c) When the skier skis down the run, what would her final velocity be if no force other than gravity did work? What other forces do work?

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