M 5. A moment (torque) M applied to the shaft and attached arm causes a tension 7 of 120 lb applied to A by the restraining cable AB. Determine the moment Mo of the tension about point O. [Hint: express the moment in vector] (20 pts) Mo= 2 Mc ·λ· (k· F 201 = 2. (r. (a.F)) (0,0,0) (0,0,16) = -16 K 7. (r. (-120k)) 2. (-14jx-120k) r=-14j F= 16" 14" 14" 60 2 M T-120 ib A B 2 TAB) A = (0, 14, 16) B(0, 14,0) = F= F-16 K جاا F= 120