uploaded imageThe body in Fig. 10-37 is pivoted at O. Three forces act on it in the directions shown: FA = 8.5 N at point A, 9.8 m from O; FB = 14 N at point B, 2.6 m from O; and FC = 20 N at point C, 4.9 m from O. Taking the clockwise direction to be negative, what is the net torque about O?