- An open ended tin can, has a hole punched in its bottom. The tin initially emply and it is suddenly immersed in big tank full of water to the depth h=50 cm. The cross sectional area of the hole is 0.5cm2. Assuming the flow from the bottom hole is frictionless and the tan horizontal cross sectional area is 40cm2. How long does it take the can to fill up to the level of the surrounding water outside the tin? Use: vin=2gh, where g=9.81m/s2, and y is the level of water