Plane Surfaces
If the plane area is symmetrical about the vertical axis OG, then 0 d = . We will assume that this is normally the case.
Find Resultant Force:
Vertical Point Where Resultant Acts:
The resultant force acts perpendicular to the plane and so makes an angle 90° −φ to the horizontal. It also acts through point C, the centre of pressure, a distance D below the free surface. To determine the location of this point we know
Plane Surface Properties
