A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

A vertical wall is subjected to a pressure due to one kind of liquid,

1.	A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.
A.	/3
B.	/2
C.	H/3
D.	H/4
Answer» D. H/4