Problem

The box B weighs 50 lb. The coefficients of friction between the cable and the fixed round...

The box B weighs 50 lb. The coefficients of friction between the cable and the fixed round supports are μs = 0.4 and μk = 0.3.

(a) What is the minimum force F required to support the box?
(b) What force F is required to move the box upward at a constant rate?

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Solutions For Problems in Chapter 9

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