1. The problem statement, all variables and given/known data 2. Relevant equations Trig Something around the lines of this? ForceY=force(a-b)*sin(some angle) -orce(b-c)sin(some angle)+force(c-d)sin(some angle) 3. The attempt at a solution Did what I did using paint. I think I am suppose to be doing something like this. Now I dunno where to go from here.