1. The problem statement, all variables and given/known data Problem is: Replace the 150-N force with an equivalent force-couple system at A Since it is really hard to describe the scenario in words, attached is a link that shows the diagram of the question. http://www.chegg.com/homework-help/...orce-equivalent-force-couple-system--q3044348 2. Relevant equations Cross Product and sum of forces 3. The attempt at a solution So I have the feeling I screwed up somewhere. What I did was I first converted the force into its components, producing me with -150cos35j+150sin35k. Since one of the things that the question asked was for I just simply took -150cos35 and 150sin35. I then decided to find the D which yields me (-0.1m)i+(0.12m)j+(-0.2m)k. Since the moment is equal to FxD, I took the cross product of these two values to produce me a value of (14.25N m)i+(-8.6N m)j +(-12.29N m)k. I have the strange feeling it is wrong and I screwed up somewhere. Can anyone help me with the problem?