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Does friction have a negative effect on the mechanical advantage

  1. Jan 22, 2010 #1
    does friction have a negative effect on the mechanical advatage of a pulley?
     
  2. jcsd
  3. Jan 22, 2010 #2

    mgb_phys

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    Re: friction

    Yes
    Generally the 'velocity ratio' is the ideal case but the mechanical advantage includes real world effects such as the weight of the pulyl and friction
     
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