The pendulum consists of the slender rod OA, which has a mass per unit length of 3 kg/m....

The pendulum consists of the slender rod OA, which has a mass per unit length of 3 kg/m. the thin disk has a mass per unit area of 12 kg/m². Determine the distance to the center of mass G of the pendulum; then calculate the moment of inertia of the pendulum about an axis perpendicular to the page and passing through G.