A 1.0-m long steel bar is suspended from a rope from the ceiling as shown. The rope is attached to the bar at its mid-point. A force F1 directed at an angle is applied at one end. At the other end, a force F2 is applied perpendicular to the bar. If the magnitude of F2 is a quarter of magnitude of F1. Not drawn to scale (a). Construct the lever arm L of force. (2) (b). Calculate the value of the angle that will the net torque on the bar. The (3)