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Homework Help: What is the efficiency of a pulley and how do we calculate it?

  1. Jan 15, 2012 #1
    1. The problem statement, all variables and given/known data
    I'm on my last question for my coursework and this is it.

    I have managed to find out how to calculate the efficiency of a pulley but not "what is the efficiency of a pulley"

    Could someone please help me.


    2. Relevant equations

    Efficiency = (Mechanical Advantage / Velocity Ratio) X100%


    3. The attempt at a solution
     
  2. jcsd
  3. Jan 15, 2012 #2
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