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Thread: angular velocity.

  1. #1 angular velocity. 
    New Member
    Join Date
    Jul 2012

    I have a question on angular velocity,
    ( let w = lower case omega , instantaneous velocity = v , radius of circle = r )

    first,why is (v = mr)

    I do not understand why velocity is equal to the radius times the angular velocity. Angular velocity is given in radians per second. How does this equal velocity when multiplied by the radius?


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  3. #2  
    Join Date
    Apr 2007
    Consider that where f is the frequency, or number of revolutions per second. In one revolution a point on the circumference of a circle travels a distance equal to the circumference of a circle, which is times the radius. Therefore the velocity is the distance per unit time,, or .

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