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. (figure 1) figure1 of 1 the horizontal beam ab of length 2 meters extends to the right from pin a fixed on a vertical surface to b, where it is supported by the vertical post cb with end c standing on the horizontal surface. force p extends up to the right from a collar on the post, which is 300 millimeters from end c and 400 millimeters from end b. the angle p makes with horizontal is an angle of a right triangle with a hypotenuse of 5, an adjacent to this angle leg of 4, and an opposite leg of 3. distributed load is acting downward on beam ab uniformly increasing from zero at a to f at b.