How much force must the person apply to the suitcase to get it to start sliding? Find anequation valid for any angleθand a value for the case whereθ= 30.0° Once the suitcase begins to slide, how much force must the person apply to keep it sliding ata constant velocity? Find an equation valid for any angleθand a value for the case whereθ= 30.0°. What angleθwill require the minimum force to keep the suitcase sliding at constant velocity?

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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Figure 1: Suitcase of massm= 20.0 kg pulled on a level floor with forceFpapplied at angleθ.

A passenger pulls a suitcase of massm= 20.0 kg on a level airport floor with a force of magnitudeFpat angleθto the horizontal as shown in Figure 1 above. The wheels on the suitcase are broken.The coefficient of static friction between the suitcase and the floor isμs= 0.300, and the coefficientof kinetic friction isμk= 0.250.

In the space below draw a free body diagram for the suitcase before it begins to slide.

How much force must the person apply to the suitcase to get it to start sliding? Find anequation valid for any angleθand a value for the case whereθ= 30.0°

Once the suitcase begins to slide, how much force must the person apply to keep it sliding ata constant velocity? Find an equation valid for any angleθand a value for the case whereθ= 30.0°.

What angleθwill require the minimum force to keep the suitcase sliding at constant velocity?

F,
m
Transcribed Image Text:F, m
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