Metal Ring Wooden Disk

For studying the dependence of moment of inertia on the distribution of mass, by rolling down a metal ring and wooden disk of the same mass and diameter on an inclined plane or rolling them on a level surface with the same initial impulse. Comprised of a metal ring and a wooden disk of diameter 15cm, thickness 5cm and same mass. When these are rolled down on an inclined plane on a level surface with the same initial impulse, the difference in acceleration can be studied