A free weight is being held 0.75 m from the shoulder joint. The center of mass of the arm, weighing 40 N, is 0.35 m from the shoulder joint. The moment arm for the deltoid muscle is 0.04 m.

a)What is the equation for static equilibrium in the scenario described above? b) How much torque must be generated by the deltoid muscle to hold a 50 N free weight in a straight out position (continue to use all information provided above) ?