1. A uniform horizontal lever of length 2.4 m is pivoted at its mid-point. The following forces are acting on the lever: a 6 N upward force (force with upward vertical component) that makes an angle of 50 deg with the horizontal-left acting at the right end of the lever, a 7 N vertically downward force acting at the left end of the lever, and a 0.73 N vertically downward force acting at a point on the lever 0.2 m away from the right end. Calculate the net torque acting on the lever.
   2.