Set 18 Problem 2 Water Tank . "2 V ' .l ,_ H The tank shown above has height .'i = y2 - )11. Its top surface has area A2, and water flows out through a hole of diameter d in the bottom of the side wall. Suppose the top surface of the uid is subjected to an external gauge pressure P2. Assume the top surface of the uid has negligible velocity (v2 = ) and the water ows out into atmospheric pressure. Find the velocity v1 of the water as it leaves the tank. You may express your answer using any of the following quantities: a, A2, 132,41, the acceleration due to gravity 3, atmospheric pressure F1, and the density of water 9. ~Use Bernoulli's principle. 'Be careful about gauge pressure vs . absolute pressure