A Solid Spherical Ball of Mass M and Radius R

question 34

Multiple Choice

A solid spherical ball of mass M and radius R rolls without slipping down an inclined plane from a height h.Compare the center of mass speed of the ball at the bottom of the plane with the speed obtained if the ball were simply dropped from a height h.

• A)rolling ball is (5/7)^1/2 times slower
• B)rolling ball is 7/5 times faster
• C)rolling ball is (2/3)^1/2 times slower
• D)rolling ball is 2/3 times faster
• E)rolling ball and dropped ball have the same speeds

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Definitions:

Positive Transfer

The beneficial effect of prior learning on the acquisition of new skills or knowledge, where skills from one context enhance performance in another.

Conscious Attention

The focused and deliberate awareness and processing of the present moment or a specific stimulus.

Déjà Vu

The feeling of having already experienced the present situation, a phenomenon that's often mysterious and hard to explain.

Anterograde Amnesia

A condition that prevents an individual from forming new memories after the onset of the condition, though memories from before the event may remain intact.