Physics - Elasticity Question with Solution | TestHub

A steel rod has a radius of $20 \mathrm{mm}$ and a length of $2.0 \mathrm{m}.$ A force of $62.8 \mathrm{kN}$ stretches it along its length. Young's modulus of steel is $2.0\times {10}^{11}\mathrm{N} {\mathrm{m}}^{-2}$. The longitudinal strain produced in the wire is $\_\_\_\_\_\_\_\_\_\times {10}^{-5}$.