The truck, which has mass mt , is to be lowered down the slope by a rope
Question:
The truck, which has mass mt , is to be lowered down the slope by a rope that is wrapped around a tree. If the wheels are free to roll and the man at A can resist a pull P, determine the minimum number of turns the rope should be wrapped around the tree to lower the truck at a constant speed. The coefficient of kinetic friction between the tree and rope is μk.
Units Used:
Mg = 1000 kg
Given:
mt = 3.4 Mg
P = 300 N
θ = 20 deg
μk = 0.3
g = 9.81m/s2
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