A collar bearing C is supported by a fixed annular plate. The axial load on the shaft is F = 600 N, and the coefficient of kinetic friction between the collar and the plate is uk = 0.3. The area of contact has an inside diameter of D₁ = 60 mm, and the outside diameter is D₂ = 180 mm. Determine the torque required to rotate the shaft at a constant rate.

The band brake of Fig. is used to control the rotation of a drum. The coefficient of friction between the belt and the 40 V-pulley is 0.10. The weight of the handle is 2 lb. If a force of 50 lb is applied to the end of the han- dle, determine the maximum torque for which no motion occurs if the torque is applied Counterclockwise. 50 Ib 3 in. +9 in- 18 in.-

Consider (Figure 1). The cord is attached to the 36-lb block, and the coefficients of static friction are HB = 0.2 and μp = 0.3. Figure M 1.5 ft B 3 ft -1.5 ft- D C < 1 of 1 Part A Determine the smallest couple moment which can be applied to the 24-lb wheel that will cause impending motion. Express your answer in pound-feet to three significant figures. VAΣo↓↑ vec M = Submit Provide Feedback Request Answer A ? lb-ft

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