1.http://en.wikipedia.org/wiki/Shear_and_moment_diagram on this page is a shear moment diagram. I can't work out how to resolve the reaction forces. please help. 2. M=D*F 3. I tried to use the moment equation at the points where there are reaction forces. Ie the two pin joints and the wall support, but this gave me the wrong numbers. I think it might be beacuse i've made a mistake with the 50 k/ft turning force. please show me how to work out the forces. thank you.