A worker moves a 20-kg crate on a level surface by pulling on the free end of a light, uniform cable whose other end is attached to the crate. The resultant tension in the cable is 200 N at an angle of 300 above the horizontal. (See the diagram below.) If the coefficient of friction between the crate and the surface is μk = 0.40, what is the resultant acceleration of the system? a.3.9 m/s2 b.4.6 m/s2 c.1.8 m/s2 d.3.2 m/s2 e.2.5 m/s2

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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 worker moves a 20-kg crate on a level surface by pulling on the free end of a light, uniform cable whose other end is attached to the crate. The resultant tension in the cable is 200 N at an angle of 30⁰ above the horizontal. (See the diagram below.) If the coefficient of friction between the crate and the surface is μ_k = 0.40, what is the resultant acceleration of the system?

a.

3.9 m/s²

b.

4.6 m/s²

c.

1.8 m/s²

d.

3.2 m/s²

e.

2.5 m/s²

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