The pulley os pin-connected to block B at A. As cord CF unwinds from the inner hub with the motion shown, cord DE unwinds from the outer rim. Determine the angular acceleration of the pulley at the instant shown

1. 

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The pulley os pin-connected to block B at A. As cord CF unwinds from the inner hub with the motion shown, cord DE unwinds from the outer rim. Determine the angular acceleration of the pulley at the instant shown.
[A]. alphaq = 80.0 rad/s2
[B]. alphaq = 160.0 rad/s2
[C]. alphaq = 180.0 rad/s2
[D]. alphaq = 53.3 rad/s2

Answer: Option D

Explanation:

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