Background D Consider water being drained from a cylindrical container of diameter D A through a hole at the bottom, of diameter d (see figure to the right). Let . A be a point on the surface of the water and let B be a point right at the hole. The level of water is h above the hole. h In the prelab, you obtained that the acceleration of water at point A is constant. Using this acceleration, we then obtained the time required for the surface of the water (i.e., point A) to move with that Water flowing . acceleration over a distance h. This is the time needed to empty the into bucket B container! 2h tempty g Our goal for this lab is to test this equation: the relationship between the time to empty our beaker when it is filled to a height h