A solid sphere and a hollow sphere each of mass M and radius R are released at the same time from the top of an inclined plane. Which one of the following statements is necessarily true?
A)The solid sphere will reach the bottom first.
B)The hollow sphere will reach the bottom first.
C)Both spheres will reach the bottom at the same time.
D)The solid sphere will reach the bottom with the greater kinetic energy.
E)The hollow sphere will reach the bottom with the greater kinetic energy.

Question

Quizplus · Accepted Answer

The solid sphere will reach the bottom first because it has a smaller moment of inertia compared to the hollow sphere, allowing it to accelerate faster down the incline.

A Solid Sphere and a Hollow Sphere Each of Mass