Bernoulli's Principle : Water Discharge from a Large Tank
Channel: Kim DJ
Date: 2016-09-18

A large tank open to the atmosphere is filled with water to a height of h from the outlet tap. A valve near the bottom of the tank is now opened, and water flows out from the smooth and rounded outlet. (a) Derive an expression for the velocity of the water at the bottom of the tank in terms of h, and fundamental constants. 
(b) Determine how long it will take for the water level in the tank to drop to 0.5h from the bottom.