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Name: A man uses a rope and a system of pulleys to raise a 200-lb box to a h
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Description: A man uses a rope and a system of pulleys to raise a 200-lb box to a height of 10 ft. He exerts a force of 60 lb on the rope and pulls a total of 40 ft of rope through the pulleys. (a) How much work does he perform? (b) By how much is the potential e

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A man uses a rope and a system of pulleys to raise a 200-lb box to a height of 10 ft. He exerts a force of 60 lb on the rope and pulls a total of 40 ft of rope through the pulleys. (a) How much work does he perform? (b) By how much is the potential energy of the box increased? (e) If these answers are different, what do you think the reason is?

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