1. The problem statement, all variables and given/known data There is a object with mass m connected by a massless rope to a pulley with mass M and radius R. Find the angular acceleration of the pulley when the mass is let go. 2. Relevant equations torque= I*angularacceleration(aa)=r*F F=ma 3. The attempt at a solution pulleys with mass give me trouble all around. I know to find the angular acceleration i must find the tension of the the rope. Fnet= T= mg-Fpulley I do not know how to find the "force" of the pulley, or the torque. could anyone show me how to find the force of the tension.