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Homework Help: Unit of Angular Velocity

  1. May 28, 2017 #1
    • Thread moved from the technical forums, so no Homework Helplate is Shown
    The unit of angular momentum is kg * m^2 / s (or I * W). The moment of inertia for a point mass, mr^2's unit is kgm^2. That means the unit of W has to be 1/s. I'm having trouble converting this to radian/s.

    Thank you!
     
    Last edited: May 28, 2017
  2. jcsd
  3. May 28, 2017 #2

    haruspex

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    Has the child stopped moving?
    It is already rad/s.
    Radians and degrees are a bit strange in that they have units but, conventionally, not dimension.
    As it happens, I wrote an article on this: https://www.physicsforums.com/insights/can-angles-assigned-dimension/
     
  4. May 28, 2017 #3
    Since the child moves with the merry-go-round, we have to consider a separate moment of inertia for Lindsey, right?
     
  5. May 28, 2017 #4

    haruspex

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    Yes.
     
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