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Direction of angular velocity

  1. Apr 21, 2014 #1
    V = ωr

    V= velocity
    ω = angular velocity
    r = radius

    How is the direction of ω perpendicular to the plane of rotation?

    Is the formula ω = vsinθ χ 1/r which is the cross product of vsinθ and 1/r the reason why ω is perpendicular to the plane of rotation?
     
  2. jcsd
  3. Apr 22, 2014 #2
    ω is perpendicular to the plane of rotation because it is parallel with the axis of rotation.
     
  4. Apr 22, 2014 #3
    ω = (r x v)/|r|2
     
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