# Tension in wire

#### edcm

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

Related Introductory Physics Homework News on Phys.org

#### Stonebridge

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:

#### edcm

oh, of course. E=(F*L)/(e*A)

#### edcm

no, wait, wrong one, lol

"Tension in wire"

### Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving