Question: A clock pendulum is an assembly of a very thing 700g rigid rod and a cylinder. The cylinder is 20cm in diameter and has a mass of 3kg. The rod is 70cm long. A) Find the moment of inertia for the pendulum about the axis passing through the top end of the rod perpendicurlarly to the facet of the cylinder; b) Calculate the radius of gyration for the pendulum. -------- | | | O Picture presented above. A) I = Irod + Icylinder Irod = (mL^2)/3 + ??? I'm not sure how to get the second one, infact I was confused how they got (ml^2)/3... I can only get (mL^2)/4 when I take the center of mass and treat it as a particle. CM: l/2 to mR^2 to m(l/2)^2 to (mL^2)/4 ANY HELP IS GREATLY APPRECIATED.