problem:- A circular tank of diameter 4m contains water up to a height to 5m. Orifice of diameter 0.5m at the bottom. Find the time taken by water:- 1. To fall from 5m to 2m 2. For completely emptying to tank take cd=0.6

 A circular tank of diameter 4m contains water up to a height to 5m.

Orifice of diameter 0.5m at the bottom. Find the time taken by water:-

1.          To fall from 5m to 2m

2.          For completely emptying to tank take cd=0.6