The object on the left is a discus, a piece of sports equipment made of a metal core, a plastic inner rim, and a metal outer rim. The object on the right is a flying disc, a piece of sports equipment made of plastic. In sports games, both pieces of equipment are thrown causing them to rotate on a vertical axis. Does the discus or the flying disc have greater rotational inertia? Why? The has greater rotational inertia because it has more .