Shown is the cross section of a molded flat-belt pulley. Determine its mass moment of inertia and

Question:

Shown is the cross section of a molded flat-belt pulley. Determine its mass moment of inertia and its radius of gyration with respect to the axis AA′. (The specific weight of brass is 0.306 lb/in3 and the specific weight of the fiber-reinforced polycarbonate used is 0.0433 lb/in3.)

Pohcurbonate L in. Bess -0.475