A Wheel Rotating About a Fixed Axis Has an Angular $\theta$

A wheel rotating about a fixed axis has an angular position given by $\theta$ = 3.0 -2.0t³,where $\theta$ is measured in radians and t in seconds.What is the angular acceleration of the wheel at t = 2.0 s?

A) -1.0 rad/s²
B) -24 rad/s²
C) -2.0 rad/s²
D) -4.0 rad/s²
E) -3.5 rad/s²

Correct Answer:

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