Engineering Board Exam Reviewer · Applications: Centroid, Work, and Moment of Inertia · easy

A vertical circular gate 2 m in diameter has its center 5 m below the water surface. Find the hydrostatic force on the gate, in kilonewtons. Use g=9.81 kN/m3.

  1. 154.1
  2. 123.28
  3. 184.91
  4. 77.05

Answer

A. 154.1

Solution

F= g, h,A=9.81(5)(π·12) 154.10 kN, since the centroid of the gate is at depth h=5 m.

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