This video appears on the page: Rolling Motion

Energy of Cylinder Rolling on Flat Ground

In this video we calculate the energy of a rolling cylinder two ways. In the first way, we add up the kinetic energy due to the wheel's movement across the ground and the energy of the rotation. The second time we do it we do it the crazy way, treating the wheel like an object that is rotating not about its center but about the bottom of the wheel where it's touching the ground.