7) Two forces F1 and F2, and a couple M act on the pipe system as shown. F1 and F2 are parallel to the x- and y-axes respectively. M is directed from point B to point C. Their magnitudes are 120 N, 200 N, and 50 N-m, respectively. If you represent the forces and the couple by a single force F and a couple moment M at point A, what are F and M? ANS: F = (1207-2007)N, M = (-6i +10.9j169.4k)N.m 250 mm 180 mm 230 mm 350 mm. B F