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Created for Albert.io. Copyright 2016. All rights reserved.

A light string is wrapped around a pulley of mass $M$ and moment of inertia $I$, as shown in the figure above. The string is pulled by a constant force of magnitude $F$.

What is the angular acceleration of the pulley?

A

$\cfrac{FR}{I}$

B

$\cfrac{FR}{2I}$

C

$\cfrac{2FR}{I}$

D

$\cfrac{F}{I}$

E

$\cfrac{F}{2IR}$

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