Consider a bucket of water with two holes of equal area through which water is discharged. The water can flow out through hole ( B ), at the bottom, or through the down-spout, which begins at the top ( T ) and has its opening the same distance below the water level as the center of hole ( B).
\-------------------------/
\ /
\ /__
\ T/--+|
\ / ||
\ / ||
____\ / ||
-----\B / ||
\---------/
Ignoring any friction effects, out of which opening will the water flow faster, and why?
The opening at T will be faster.