2. A square metal plate 0.180 m on each side is pivoted about an axis through point O at its center and perpendicular to the plate. Calculate the net torque about this axis due to three forces shown in the figure if the magnitudes of the forces are F1 = 18.0 N, F2 = 26.0 N and F3 = 14.0 N. The plate and all forces are in the plane of the page.