Physics

Problem

## Questions 3-4 ![](https://storage.googleapis.com/diraq-contents/question-bank/question-images/5297d497b818/2025_11_20_a8e88cb40012d192d3dfg-06.jpg) A sphere of mass M , radius r , and rotational inertia I is released from rest at the top of an inclined plane of height

h

as shown above. 4. If the plane has friction so that the sphere rolls without slipping, what is the speed

v_{c m}

of the center of mass at the bottom of the incline? (A)

\sqrt{2 g h}

(B)

\frac{2 M g h}{I}

(C)

\frac{2 M g h r^{2}}{I}

(D)

\sqrt{\frac{2 M g h r^{2}}{I}}

(E)

\sqrt{\frac{2 M g h r^{2}}{I+M r^{2}}}

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