A structural steel rod has a radius of 10 mm and a length of 1.0 m. A 100 kN force stretches it along its length. Calculate (a) stress, (b) elongation, and ( c ) strain on the rod. Young's modulus, of structural steel is 2.0 `xx` `10^(11)` N `"m"^(-2)`.

Explanation

To solve the problem step by step, we will calculate the stress, elongation, and strain on the structural steel rod.

### Given Data:
- Radius of the rod, \( r = 10 \, \text{mm} = 10 \times 10^{-3} \, \text{m} \)
- Length of the rod, \( L = 1.0 \, \text{m} \)
- Force applied, \( F = 100 \, \text{kN} = 100 \times 10^{3} \, \text{N} \)
- Young's modulus of structural steel, \( E = 2.0 \times 10^{11} \, \text{N/m}^2 \)

...