_) In unit-vector notation, what is the torque about the origin on a particle located at coordinates (0, -8.30 m, 1.71 m) due to (a) force F1 _) with components F1x = 9.96 N and Fly = F1z = O, and (b) force F 2 with components sz = 0, F23, = 1.49 N, F22 = 5.09 N? A +&