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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 0i800j+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.
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 0i800j+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.
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