During the Time a Compact Disc (CD) Accelerates from Rest

question 9

Multiple Choice

During the time a compact disc (CD) accelerates from rest to a constant rotational speed of 477 rev/min, it rotates through an angular displacement of 0.250 rev. What is the angular acceleration of the CD?

• A)358 rad/s²
• B)126 rad/s²
• C)901 rad/s²
• D)866 rad/s²
• E)794 rad/s²

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