A steel wire is acted upon by a load of 10 N. Calculate the extension

1.	A steel wire is acted upon by a load of 10 N. Calculate the extension produced in the wire, if the strain energy stored in the wire is 1.1 × 10-3 J.
Answer» Given: F = 10 N, Strain energy = 1.1 × 10^-3J, To find: Extension (l) Formula: W = \(\frac{1}{2}\) × F × l Calculation: From formula, l = \(\frac{2\,W}{F}=\frac{2\times1.1\times10^{-3}}{10}\) = 2.2 × 10^-4 m. The extension produced in the wire is 2.2 × 10^-4m.

A steel wire is acted upon by a load of 10 N. Calculate the extension produced in the wire, if the strain energy stored in the wire is 1.1 × 10-3 J.

Answer»

Given: F = 10 N, Strain energy = 1.1 × 10^-3J,

To find: Extension (l)

Formula: W = \(\frac{1}{2}\) × F × l

Calculation:

From formula,

l = \(\frac{2\,W}{F}=\frac{2\times1.1\times10^{-3}}{10}\) = 2.2 × 10^-4 m.

The extension produced in the wire is 2.2 × 10^-4m.