A turntable with a 0.55-m radius is given a constant angular acceleration of 0.125 rad/s2 from rest. (a)How many times does the turntable rotate in the first 15 s after the acceleration begins? (b) After the acceleration begins, how long does it take for the magnitude of the acceleration of a point on the rim of the turntable to reach 0.16 m/s2 (HINT: The magnitude of the acceleration is a = sqrt( ac2 + at2

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Chapter1: Units, Trigonometry. And Vectors
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A turntable with a 0.55-m radius is given a constant angular acceleration of 0.125 rad/s2 from rest. (a)How many times does the turntable rotate in the first 15 s after the acceleration begins?

(b) After the acceleration begins, how long does it take for the magnitude of the acceleration of a point on the rim of the turntable to reach 0.16 m/s2 (HINT: The magnitude of the acceleration is a = sqrt( ac2 + at2 ))

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