The trailer has a total weight W and center of gravity at G which is directly over

Question:

The trailer has a total weight W and center of gravity at G which is directly over its axle. If the axle has a diameter D, the radius of the wheel is r, and the coefficient of kinetic friction at the bearing is μk, determine the horizontal force P needed to pull the trailer.


Given:

W = 850 lb

r = 1.5 ft

μ k = 0.08

D = 1 in



G. -P


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