Problem $1($ch$.10).$ A solid cylinder with mass of $400\mathrm{.}0$ g and the radius of $25\mathrm{.}0$ cm is mounted on a vertical axis going along its symmetry axis, and set into the rotational motion starting from rest, by four constant forces applied to the rim of the cylinder, as shown on the sketch.

Calculate torque produced by each force with respect to the axis of rotation passing through the center of the disc, and then find the net Top view of the spinning Cylinder torque.

What angular acceleration is the net torque causing? Calculate it$,$ and state if the rotation will be CW or CCW$.$

Consider the direction of the diste rotation, and the direction of each individual torque. State which force does positive work on the disc rotation, and which does the negative work. Explain how you could tell.