The radius of the pulley is 4 in. The pulley is rigidly attached to the horizontal shaft, which is supported by two journal bearings. The radius of the shaft is 1 in, and the combined weight of the pulley and shaft is 20 lb. The coefficients of friction between the shaft and the bearings are μs = 0.30 and μk = 0.28. Determine the largest weight W that can be suspended as shown without causing the stationary shalt to slip in the bearings.
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