A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.0 rad/sec? acquires an angular velocity of 5.0 rad/sec. The CD continues rotating at 5.0 rad/sec for 15.0 seconds and then slows to a stop in 12.0 seconds with a constant angular deceleration. What is the tangential velocity of a point 4.0 cm from the center at the time 25.0 seconds from the start? O 5.2 x 103 m/s O 6.7 x 103 m/s O 7.2 x 103 m/s O 8.5 x 103 m/s O 9.7 x 103 m/s

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