The braking mechanism consists of two pinned arms and a square-threaded screw with left- a...

The braking mechanism consists of two pinned arms and a square-threaded screw with left- and right-hand threads. Thus when turned, the screw draws the two arms together. If the lead of the screw is 4 mm, the mean diameter 12 mm, and the coefficient of static friction is μs = 0.35, determine the tension in the screw when a torque of 5 N • m is applied to tighten the screw. If the coefficient of static friction between the brake pads A and B and the circular shaft is μ's = 0.5, determine the maximum torque M the brake can resist.