A CD with a Diameter of 12

question 80

Multiple Choice

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec² acquires an angular velocity of 5.00 rad/sec.The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration.What is the angular distance traveled by a point 4.00 cm from the center,at the time 25.0 seconds from the start?

• A) 107 rad
• B) 193 rad
• C) 205 rad
• D) 237 rad
• E) 274 rad

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