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While the unit most compatible with the SI (in the sense of simplifying mathematical formulae) would be radians per second, not only the U.S. but other parts of the world commonly use revolutions per minute.

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12y ago

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Is a second customary or metric?

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Angular velocity is the measure of angular displacement (in one or the opposite) direction over a unit period of time. In the context of CDs , one unit in which this can be measured is the number of revolutions per second. A constant angular velocity means that the CD is turning through the same angle each second.


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Is feet in the customary unit or the metric unit?

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What is the meaning of angular frequency for a body undergoing simple harmonic motion?

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