The gate in the figure below is 1.2m wide, is hinged at point B, and rests against a smooth wall at the point A. Compute the following:
A. The force on the gate due to seawater pressure
B. The horizontal force exerted by the wall at point A
C. The reaction at hinge B
Key answers: A - 173.75 KN, B - 129.2 KN, C - 137.55 KN