A solid sphere, spherical shell, solid cylinder and a cylindrical shell all have the same mass m and radius R. If they are all released from rest at the same elevation and roll without slipping, which reaches the bottom of an inclined plane first?
A) solid sphere
B) spherical shell
C) solid cylinder
D) cylindrical shell
E) all take the same time

Question

Quizplus · Accepted Answer

The solid sphere reaches the bottom first because it has the smallest moment of inertia relative to its mass, which means it accelerates faster when rolling without slipping.

A Solid Sphere, Spherical Shell, Solid Cylinder and a Cylindrical