Question: A differential band brake is used to control the speed of a drum which rotates at a constant speed. Knowing that the coefficient of kinetic

A differential band brake is used to control the speed of a drum which rotates at a constant speed. Knowing that the coefficient of kinetic friction between the belt and the drum is 0.30 and that a couple of magnitude is 150 N m ⋅ applied to the drum, determine the corresponding magnitude of the force P that is exerted on end D of the lever when the drum is rotating

(a) Clockwise,

(b) Counterclockwise.

re140 mm 30 150 mm IC 300 mm- 30 40 mm

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