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Young's modulus of a wire

  1. Mar 26, 2008 #1
    1. The problem statement, all variables and given/known data

    A wire of length 4.97 m with a cross-sectional area of 0.104 cm2 stretches by 6.52 mm when a load of 0.92 kN is hung from it. What is the Young's modulus for this wire? Answer in Pa
    2. Relevant equations

    F/A = Y(Change in L / L)

    where F is the magnitude of force
    A = .104cm^2
    Y= Young's modulus
    Change in L = 6.52mm
    L = 4.97 m

    3. The attempt at a solution

    I tried Y = (9025.2 N)(4.97 m) / (.00652 m)(.00104 m^2) but that is wrong
  2. jcsd
  3. Mar 26, 2008 #2


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    Check your decimal points. F = 920N and A = .0000104m^2
  4. Mar 26, 2008 #3
    ah.. thanks i got it now
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