A ring, a disk, and a solid sphere begin rolling down a hill together. Which reaches the bottom first?
A)ring
B)disk
C)sphere
D)all reach the bottom at the same time
E)need more information

Question

Quizplus · Accepted Answer

The solid sphere reaches the bottom first because it has the smallest moment of inertia relative to its mass, allowing it to convert more of its potential energy into translational kinetic energy faster than the ring or disk.

A Ring, a Disk, and a Solid Sphere Begin Rolling