**1. The problem statement, all variables and given/known data**

**2. Relevant equations**

fluid pressure = fluid density * depth * g

**3. The attempt at a solution**

My understanding is that fluid pressure at any two points at the same depth is equal, for a fluid at rest. But because one end is open, the pressure at point C is less than B and equal to A? I don’t understand intuitively how this works.

Any help would be appreciated – thanks!

http://ift.tt/1dDELY4