The uniform concrete pipe has a weight of 800 lb and is
Chapter 8, Problem 8-91(choose chapter or problem)
The uniform concrete pipe has a weight of 800 lb and is unloaded slowly from the truck bed using the rope and skids shown. If the coefficient of kinetic friction between the rope and pipe is \(\mu_k = 0.3\), determine the force the worker must exert on the rope to lower the pipe at constant speed. There is a pulley at B, and the pipe does not slip on the skids. The lower portion of the rope is parallel to the skids.
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