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Physics Bernoulli`s Equation

jc91

New member
Oct 17, 2018
8
Hi All,

Could anyone advise on how to answer below question (attached). I am struggling big time on this.

Thanks in advance.
 

Attachments

Klaas van Aarsen

MHB Seeker
Staff member
Mar 5, 2012
8,780
Hi All,

Could anyone advise on how to answer below question (attached). I am struggling big time on this.

Thanks in advance.
Hi jc91 , welcome to MHB! ;)

Let's start with Bernoulli's equation:
$$\frac 12 \rho v_1^2 + \rho g z_1 + p_1 = \frac 12 \rho v_2^2 + \rho g z_2 + p_2$$
Or do you perhaps have a different version of it?

Since (2) is a stagnation point, we have $v_2=0$.
The pressure is identified by the column of water above it: it's the weight per surface area.
And additionally we have the standard pressure of air ($p_0$).
So for instance $p_1 = p_0 + \rho g (h_1 + h_2)$.

How far do you get filling in the other variables and solving for $v_1$?
 

Ackbach

Indicium Physicus
Staff member
Jan 26, 2012
4,193
Question for jc91 : what is underneath the blue scribble?