Inertia-Ring & Disk Apparatus


The Ring and Disk - a classic for your classroom!

In this classic discrepant event, two objects of equal mass and equal radius roll down an incline. One is a solid disk and the other is a ring. Which reaches the bottom first?

Students must consider distribution of mass, how it affects rotational inertia, and how inertia affects motion. 15cm diameter.

Ramp not included.