The beam AB has a negligible mass and thickness and is subjected to a triangular distribut...

The beam AB has a negligible mass and thickness and is subjected to a triangular distributed loading. It is supported at one end by a pin and at the other end by a post having a mass of 50 kg and negligible thickness. Determine the minimum force P needed to move the post. The coefficients of static friction at B and C are µB = 0.4 and µC = 0.2, respectively.