The box B weighs 50lb. The coefficients of friction between the cable and the fixed round supports are us= 0.40 and uk= 0.30. What is the minimum force F required to support the box? What force F is required to move the box upward at a constant rate? В F

The box B weighs 50lb. The coefficients of friction between the cable and the fixed round supports are us= 0.40 and uk= 0.30. What is the minimum force F required to support the box? What force F is required to move the box upward at a constant rate? В F

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.63P: The leather rein used to fasten the horse to the hitching rail weighs 3.5 oz per foot. The...

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The box B weighs 50lb. The coefficients of friction between the cable and the fixed round supports are us= 0.40
and uk= 0.30. What is the minimum force F required to support the box? What force F is required to move the box upward
at a constant rate?
В
F

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