Answer to Question #56509 in Mechanical Engineering for hemant shukla

Question

How much power is required for a football to put at button from 3 meter high tank filled with water football having dry air have a density of 1.2754 kg/m3. At 20 °C and 101.325 kPa
water density 1000 kg/m3

and how much s gives power if i release from bottom of same tank

Please give an answer with calculation.