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Question

The angular position of a point on the rim of a rotating wheel is given by θ=4t3t2+t3, where θ is in radians and t is in seconds. What is the instantaneous angular acceleration at t=2 sec?

A
4 rad/s2
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B
2 rad/s2
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C
6 rad/s2
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D
3 rad/s2
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