Pulley / Mechanical advantage

  • Thread starter phrankle
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  • #1
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Main Question or Discussion Point

http://www.getofftheinternet.net/pulley.png

How would you go about calculating the mechanical advantage of this pulley system?
 
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Answers and Replies

  • #2
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The tension of each rope supporting the weight of the load is the same. Divide the weight of the load by the number of ropes supporting it.
 
  • #3
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Divide the weight of the load by the number of ropes supporting it? That doesn't seem right to me. I'm looking for a quick way to identify the Ideal Mechanical Advantage (IMA) = output force / input force.
 

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