1. Determine the magnitude and direction of the moment of the vertical 800 lb force about the straight line through points C and D. (See attachment for diagram) 2. I believe that the equation i need is (Moment vector)=(unit vector)*((position vector)X(Force Vector)) 3. I feel that I working myself into a dead end. But, I think that The unit vector is 0.164i+0.986j+0k and the force vector is 0i-800j+0k I am having trouble finding what the position vector needs to be, though as I said earlier, I think i am going about this the wrong way.