"A uniform solid cylinder of mass 12 kg can rotate about frictionless axle through its center 0_ as shown in the cross-sectional view in the figure. A rope wrapped around the outer radius R1 = 1.5 m exerts a force of magnitude F1 = 7.2 Nto the right A second rope wrapped around another section of radius Rz = 0.75 m exerts & force of 'magnitude F2 =8.0 N downward. What is the angular acceleration of the cylinder?"