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Homework Help: Forces and moments in a hole puncher

  1. Aug 2, 2010 #1
    What are the forces and the moments of the hole puncher when a load is applied?

    The only idea here is a hole puncher is a second class lever.
  2. jcsd
  3. Aug 3, 2010 #2


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    Is that the exact text of the question? If so, it seems rather vague to me...

    Anyway, what are your thoughts? For instance, do you know what defines a second-class lever?
  4. Aug 4, 2010 #3
    It is actually an assignment regarding on moment and forces in an object. The object that my group has choosen is hole puncher. Second class lever is whereby the load is situated between the fulcrum and the load. That is all I know. According to the assignment , we can assume the magnitude of the forces and moment but I need to know how the forces act and the moment in the hole puncher.
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