A solid sphere, solid cylinder, and a hollow pipe all have equal masses and radii. If the three are released simultaneously at the top of an inclined plane, which will reach the bottom first?
A) sphere
B) pipe
C) cylinder
D) they all reach bottom in the same time
E) It depends on the angle of inclination.

Question

Quizplus · Accepted Answer

The solid sphere will reach the bottom first because it has the smallest moment of inertia relative to its mass, allowing it to accelerate faster down the incline compared to the cylinder and the hollow pipe.

A Solid Sphere, Solid Cylinder, and a Hollow Pipe All