Tension in wire

  • Thread starter edcm
  • Start date
3
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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
 
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:
3
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oh, of course. E=(F*L)/(e*A)
 
3
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no, wait, wrong one, lol
 

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