An object has a final angular velocity of 25 rad/s and sweeps through 80.0 rad with an angular acceleration of 2.5 rad/s2. What is its initial angular velocity?

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Chapter8: Rotational Motion
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An object has a final angular velocity of 25 rad/s and sweeps through 80.0 rad with an angular acceleration of 2.5 rad/s2. What is its initial angular velocity?

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