The trailer has a total weight of 850 lb and center of gravity at G which is directly over...

The trailer has a total weight of 850 lb and center of gravity at G which is directly over its axle. If the axle has a diameter of 1 in., the radius of the wheel is r = 1.5 ft, and the coefficient of kinetic friction at the bearing is μk = 0.08, determine the horizontal force P needed to pull the trailer.