Calculating Tension Required for 4*10^-4m Extension of Steel Wires on a Violin

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Homework Help Overview

The discussion revolves around calculating the tension required for a specific extension of steel wires used in a violin. The problem involves concepts from material science, specifically Young's Modulus, stress, and strain.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the relevant formulas related to stress and strain, with one participant attempting to recall the correct equation involving Young's Modulus. Questions about the definitions of stress and strain are also raised.

Discussion Status

The discussion is currently focused on identifying the appropriate formulas and definitions necessary for solving the problem. Some participants are exploring different aspects of the equations, but there is no explicit consensus or resolution yet.

Contextual Notes

Participants are working within the constraints of the problem statement, which includes specific values for cross-sectional area, Young's Modulus, and the desired extension. There is an indication of confusion regarding the correct application of the formulas.

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Homework Statement



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.


Homework Equations



Thats where I'm stuck

The Attempt at a Solution

 
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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:
oh, of course. E=(F*L)/(e*A)
 
no, wait, wrong one, lol
 

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