The tension in cable AB is 400 N, and the tension in cable CD is 600 N.(a) If you represen...

The tension in cable AB is 400 N, and the tension in cable CD is 600 N.

(a) If you represent the forces exerted on the left post by the cables by a force F acting at the origin O and a couple M, what are F and M?

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(b) If you represent the forces exerted on the left post by the cables by the force F alone, where does its line of action intersect the y axis?