engineering recuitment UPPSC AE Mock Test 2024 Strength of Materials Simple Stress and Strain Stress and Strain
When a bar of length I and diameter d is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is
where w = weight per unit volume of the bar.
1
\(\frac{wl}{2E}\)
2
\(\frac{wl^2}{2E}\)
3
\(\frac{wl^3}{2E}\)
4
\(\frac{wl^4}{2E}\)