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A rod of length $L$ and mass $m$ is pivoted at one end and held horizontal to the ground. The rod is released from rest. (Note: The rotational inertia of a uniform rod rotating about its center is $I=\frac{1}{12}ML^2$.)

What is the angular acceleration of the rod at this location?

A

$\cfrac{g}{6L}$

B

$\cfrac{g}{4L}$

C

$\cfrac{g}{3L}$

D

$\cfrac{2g}{3L}$

E

$\cfrac{3g}{2L}$

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