A pulley of mass M has radius a and the axle has a diameter D. If the
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A pulley of mass M has radius a and the axle has a diameter D. If the coefficient of kinetic friction between the axle and the pulley is μk determine the force P on the rope required to lift the block of mass MB at constant velocity. Apply the force P horizontally to the right (not as shown in the figure). Given:
a = 120 mm
M = 5 kg
D = 40 mm
μ k = 0.15
MB = 80 kg
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