a sphere rolls without slipping down an inclined plane that makes an angle 30 de

Question

a sphere rolls without slipping down an inclined plane that makes an angle 30 degrees from the horizontal. The vertical height change is h. which one of the following statements concerning the velocity when it reaches the bottom is true?

the velocty does not depend on the moment of inertia of the sphere.

the velocity would be less than if the sphere were sliding without friction and not rolling.

the velocity would be equal to (2gh)^1/2.

the velocity would be zero.

the velocity would be greater than if the sphere were sliding without friction and not rolling.

Explanation / Answer

B

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