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When a dam is subjected to hydrostatic pressure from the water, the resultant force acts ____

11. When a dam is subjected to hydrostatic pressure from the water, the resultant force acts ____.

1. Parallel to the dam's surface
2. Perpendicular to the dam's surface
3. Diagonally on the dam's surface
4. At the base of the dam

Answer: B) Perpendicular to the dam's surface

Explanation:

The resultant force due to hydrostatic pressure on a dam acts perpendicular to the dam's surface. It is commonly known as the hydrostatic thrust.