Question

What is the pressure exerted in \(\text{kN/m}^2\) at a point \(1070\text{ mm}\) below the free surface of water?

• A. \(10.5 \text{ kN/m}^2\)
• B. \(15 \text{ kN/m}^2\)
• C. \(9 \text{ kN/m}^2\)
• D. \(8 \text{ kN/m}^2\)

Hint:

A useful shortcut: each meter of water depth exerts approximately \(10 \text{ kPa}\) (or \(10 \text{ kN/m}^2\)) of hydrostatic pressure.
For \(1.07 \text{ m}\) of depth:
\[ 1.07 \cdot 10 = 10.7 \text{ kN/m}^2 \approx 10.5 \text{ kN/m}^2 \]

Answer 1

The Correct Option is A