A uniform horizontal lever of length 4 m is pivoted at its mid-point. The following forces are acting on the lever: an 11 Newton vertically upward force acting at the right end of the lever

A five Newton vertically downward force acting at the Left End of the lever and a 0.53 Newton vertically downward force acting at a point on the lever 0.1 m away from the right end.

Calculate the net torque acting on the lever.