The coefficients of static and kinetic friction between the drum and brake bar are µs = 0....

The coefficients of static and kinetic friction between the drum and brake bar are µs = 0.4 and µk = 0.3, respectively. If M = 50 N m and P = 85 N. determine the horizontal and vertical components of reaction at the pin O. Neglect the weight and thickness of the brake. The drum has a mass of 25 kg.