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Mechanical Engineering QUESTION #2407
Question 1
The hydrostatic force on a submerged plane surface of area \(A\) with center of gravity at depth \(h_{cg}\) below the free surface is:
  • \(F = \gamma h_{cg}^2 A\)
  • \(F = \gamma h_{cg} A\)✔️
  • \(F = \rho g A / h_{cg}\)
  • \(F = p_{atm} A\)
Correct Answer Explanation
The resultant hydrostatic force on a plane surface: \(F=\gamma h_{cg}A\) where \(\gamma\) is specific weight and \(h_{cg}\) is the depth to the centroid.