Engineering Board Exam Reviewer · Fluid Mechanics · medium
Water stands 6 m deep against a vertical wall 10 m long. At what height above the base does the resultant hydrostatic force act?
- 3.00 m
- 4.00 m
- 1.50 m
- 2.00 m
Answer
D. 2.00 m
Solution
The pressure distribution is triangular, so the resultant acts at h/3 = 6/3 = 2.00 m above the base (F = 1/2 h2L = 1765.8 kN).
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