1. The problem statement, all variables and given/known data I need to find the moment about G. Please ignore the question in the image. http://img13.imageshack.us/img13/6086/4cv0.jpg [Broken] Uploaded with ImageShack.us 2. Relevant equations r X F 3. The attempt at a solution Moment about G = -(30*800) + (-300*50) + 60 A + 17.32*500 + (-17.32*500(4/5)) =0 I keep getting A= 621 N but my solution is saying 721N. I am doing something wrong, not sure what.