A 3.45-kg centrifuge takes 91 s to spin up from rest to its final

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A 3.45-kg centrifuge takes 91 s to spin up from rest to its final angular speed with constant angular acceleration. A point located 8.3 cm from the axis of rotation of the centrifuge moves with a speed of 177 m/s when the centrifuge is at full speed. What is the angular acceleration (in rad/s2) of the centrifuge as it spins up?

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