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A factory worker pushes a 30.0 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 30° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. How much work is done by the normal force? Express your answer in joules. Wnf = J Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part E How much work is done by gravity? Express your answer in joules.

A factory worker pushes a 30.0 kg crate a distance of 4.9 m along a level floor at constant velocity by pushing downward at an angle of 30° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. How much work is done by the normal force? Express your answer in joules. Wnf = J Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part E How much work is done by gravity? Express your answer in joules.

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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