A band brake is in contact with drum C through an angle of 180° and is connected to the horizontal lever at A and B, as shown.
The drum diameter is 16 in. The coefficient of kinetic friction between the brake band and the drum is 0.40. Force P is 90 lb. Determine the tensions at A and B in the handbrake if the drum is rotating
(a) clockwise
(b) counterclockwise
Problem
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