An ideal (non-viscous) liquid with density u is poured into a cyndrical vessel with a cross-sectional area of A1 to a level at a height h from the bottom. The bottom has an opening with a cross-sectional area A2. Find the time it takes the liquid to flow out.

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anonymous · Answer

Do you have any specific question ?

anonymous · Answer

Use Bernoulli's equation (treating it as a streamline flow) :
$$P + \rho*g*h + \frac{ 1 }{ 2}*\rho*v ^{2} = constant$$

Apply the equation at the height h of the liquid and at the orifice of area A2;
You'll get 'v' from it. 
A2*v= volume flow rate, i.e. volume of fluid leaving the container

 As the total volume of liquid in the container = A1*h

Divide the two to get the time it takes for the total liquid to flow out.

anonymous · Answer

I still am not understanding this. Could you go into greater detail of their solution