A solid ball, a solid disk, and a hoop, all with the same

mass and the same radius, are set rolling without slipping up an

incline, all with the same initial energy. Which goes farthest up

the incline?

A. the ball

B. the disk

C. the hoop

D. the hoop and the disk roll to the same height, farther

than the ball

E. they all roll to the same height

Question

Kieran Keller

Physics

29 May, 18:40

A solid ball, a solid disk, and a hoop, all with the same

mass and the same radius, are set rolling without slipping up an

incline, all with the same initial energy. Which goes farthest up

the incline?

A. the ball

B. the disk

C. the hoop

D. the hoop and the disk roll to the same height, farther

than the ball

E. they all roll to the same height

+4

Answers (1)

Know the Answer?

Teresa Nielsen · Answer 1

Answer: E - they all roll to the same height

Explanation:

The explanation of the answer is based on the objects' moment of inertia, or a measure of how "spread out" its mass is. Since all object have same mass, radius and similar initial energy, they all roll to the same height

E