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Probably a stupid question

  1. Jun 10, 2005 #1
    If you had a set of flat propellors (propellors that are not curved and do not :uhh: .. propel), at what speed would they need to be rotating for them to take on the properties of a solid circular mass of the material?

    P.S. sorry if this is vague :frown:
  2. jcsd
  3. Jun 10, 2005 #2
    They never really would, but you can simplify depending on the application.
    They also actually would cause some propulsion.
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