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A circular plate 1 m in diameter is submerged vertically in water such its upper edge is 8 m below the free surface of water. The total hydro static pressure force on one side of plate is
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- 6.7 kN
- 65.4 kN
- 45.0 kN
- 77.0 kN
Correct Option: B
| h = 8 + | 2 |
| = 8 + | = 8.5 m | 2 |
Surface area,
| A = | d2 = | × 12 = 0.785 m2 | ||
| 4 | 4 |
Total hydrostatic pressure force, F = ρghA
F = 1000 × 9.81 × 8.5 × 0.785 = 65458 N
or F = 65.45 KN
