The water force per meter length on a vertical wall is equal to_________________?
Correct answer: C. WH2 2
- A. w H
- B. W.H/2
- C. WH2 2
- D. wh2
Explanation
For a vertical wall submerged to depth H, pressure increases linearly from zero at the surface to wH at the bottom, forming a triangular pressure diagram. Its resultant force per metre width is therefore wH²/2.
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