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Unit of Mechanical Advantage of a machine?

  1. Sep 27, 2006 #1
    Why the mechanical advantage of a simple machine has no units?
    thank you.
  2. jcsd
  3. Sep 27, 2006 #2

    Andrew Mason

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    Science Advisor
    Homework Helper

    Because you are dividing a force by a force. It is simply a dimensionless number.

  4. Sep 27, 2006 #3

    Doc Al

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    Staff: Mentor

    It's a ratio of similar quantities. The units cancel.
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