Problem 4.21 As illustrated in Fig. 4.64, consider a simple traction device applied to the leg of a patient such that the cable of the pulley makes an angle a = 35° with the horizontal. The leg is in a cast and the coefficient of friction between the cast and the bed is u= 0.45. The weight of the leg is W= 180 N. Determine the tension in the cable. Σ Fx = 0 Fig. 4.64 Problem 4.21
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