1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Tension in wire

  1. Dec 15, 2009 #1
    1. The problem statement, all variables and given/known data

    The wires on a violin have a cross section of 5.1*10^-7m^2. The wires are put under tension by turning the wooden pegs. The Young Modulus of Steel is 2.0*10^11 Pa.
    Calculate the tension required to produce an extension of 4*10^-4m.

    2. Relevant equations

    Thats where i'm stuck

    3. The attempt at a solution
  2. jcsd
  3. Dec 15, 2009 #2
    Do you know a formula with stress and strain in it?
    Do you know the definition of stress and strain?
    These are what you need to use.
    Last edited: Dec 15, 2009
  4. Dec 15, 2009 #3
    oh, of course. E=(F*L)/(e*A)
  5. Dec 15, 2009 #4
    no, wait, wrong one, lol
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook