A spool has a weight W = 450 lb, outer and inner radii R = 6 ft and ρ = 4.5 ft, respectively, radius of gyration kG = 4.0 ft, and mass center at G. The spool is being pulled to the right as shown, and the cable wrapped around the spool is inextensible and of negligible mass.
Figure P7.74
Assume that the static friction coefficient between the spool and the ground is μs = 0.75, and determine the maximum value of the force that the truck could exert on the cable without causing the spool to slip relative to the ground.
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