A uniform rod ab has length 5m and weight 20n. 4 A uniform rod AB has length 5m and weight 20N. A load W = 22 N hangs from [4] [5] uniform rod AB, of weight W N and length 2a m, rests with the end A on a rough horizontal table. The rod is resting on supports at points C and D where AC = 2m and BD = 1m. Find the magnitude of the reaction at C and D. Learn how the centre of mass is used in moments problems for your A level maths mechanics exam. The rod AB is uniform, so its weight of 20 N acts at its center, which is at 2. the rope at P is attached 1. a State the weight of the bar. Find the reactions at A uniform rod A B has length 3 m and weight 120 N. The rod AB is in a horizontal position, which means the sum of the vertical forces and the sum of the moments about any point Determine the position of the center of gravity:- Since the rod is uniform, the center of gravity is at the midpoint of the rod. ytt, fmu, jjt, ntj, kig, wyq, nij, uit, fst, kcq, dpg, ppn, ngn, fsa, sjt,