I often have much trouble with fluid problems in general. I know what equations are involved but am confused on how to apply them to these problems.
P + pgh + 0.5pv^2 = constant
P - pressure
p = density
v = velocity
h= height from the surface of fluid?
The Attempt at a Solution
it is kinda unclear to me what velocity im trying to find. I am thinking the problem wants to find the velocity of the liquid as it comes out of the straw out of the cup?
I'm thinking of comparing the constants at the bottom of the end of the straw where the velocity is unknown but that the pressure is just atm pressure with the end of the straw inside the water (where the pressure is unknown and velocity =0?)
So i get
(bottom of straw out of cup) 101300 Pa + pg(0.06m) + pv^2 = constant
(end of straw inside cup) P + pg(0.01m) + 0 = constant
set the constants equal to each other
101300 Pa + pg(0.06) + pv^2 = P + pg(0.01)
Kinda stuck from each as i have too many unknowns
41.8 KB Views: 525