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Homework Help: Find diameter of steel wire - stress

  1. Mar 27, 2005 #1
    a) what is the diameter of a steel wire 18m long that elongates 9mm when a load of 380kg is hung on its end?
    b) if the elastic limit is 3.00E8 N/m^2, does permanent deformtion occur?

    [tex]\Delta L=FL/YA[/tex]

    no deformation

    is that all correct?
  2. jcsd
  3. Mar 27, 2005 #2


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    Science Advisor

    Looks good to me!
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