If I needed to calculate the kinetic energy of a bar suspended by a rope at one of its ends, in other words, a bar pendulum, do I need to calculate the kinetic energy of the center of mass plus the kinetic energy relatively to the center of mass or do I need to calculate the kinetic energy of the point located on the beginning of the bar (bar-rope junction) plus the kinetic energy relatively to that point? I'm thinking the first way is the right way, thanks.
Edit: Only the bar has mass, so when I speak of kinetic energy and center of mass I'm referring to the bar only.
Edit: Only the bar has mass, so when I speak of kinetic energy and center of mass I'm referring to the bar only.
