A horizontal oriented tube AB of length l rotates with a constant angular velocity `omega` about a stationary vertical axis OO' passing thorugh the end A figure. The tube is filled with an ideal fluid. The end A of the tube is open, the closed end B has a very small orifice. find the velocity of the fluid relative to the tube as a function of the column height h.

Answer

`omega hsqrt((2l)/h-1))`