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Young's modulus help?
Assume that extension is proportional to the tension.
A wire of natural length 50cm, diameter 1.5mm and Young's modulus 3.2GPa is stretched to a new length of 52.4cm, which is below the limit of proportionality. How much work was done in order for this to happen?
1 Answer
- Andrew SmithLv 78 months ago
Acacia, without comments it becomes ESSENTIAL to pick a best answer. Comments would be better but they have been turned off.
That is what NCS is politely referring to.
The strain is 2.4 / 50 and stress / strain = youngs modulus
-> stress = 2.4 / 50 * 3.2 * 10 ^ 9 N/m^2
Multiply by the area to get the MAXIMUM force.
Then find the energy by 1/2 Fmax * distance
