Unit of Mechanical Advantage of a machine?

  1. Why the mechanical advantage of a simple machine has no units?
    M.A=Load/Effort.
    thank you.
     
  2. jcsd
  3. Andrew Mason

    Andrew Mason 6,829
    Science Advisor
    Homework Helper

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

    AM
     
  4. Doc Al

    Staff: Mentor

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