0:00
Hello.
00:02
So this is the diagram representing the question.
00:05
So we initially have a fluid, yeah, which is moving through this portion, right, horizontally and the later descends through that distance, 11 meters and then travels horizontally again like that.
00:24
So we have to use the benolis principle.
00:29
Which says that the pressure at the top plus row g h plus half times the row and the velocity at the top squared equals the same thing about at the lower side so that plus row g h plus half row vl squared okay you have to also understand here that at the lower side yeah once it is traveling like that the there is no height here it is traveling at some height 11 right that's at the upper part but at the lower part there's no height and so the whole of this is going to go to zero because h is zero okay so i'm going to rearrange this since we are looking for the pressure difference i'm going to say the pressure are at the lower side just a second let me see see what we will be asked okay yeah so we basically have to find the pressure the difference in the pressure at the lower side and the upper side that is going to be equal to row gh plus half row into v u squared minus uh i just want to be sure about this uh yeah v u squared minus v l squared okay so this is how we get the uh difference in pressure.
02:23
At this point we can now put in our values.
02:28
The specific gravity is 1 .4.
02:31
So we're going to say 1 .4 times 10 to the current, yeah, and the gravity 9 .8, and the height is 11 plus half times specific gravity again, 1 .4 times 10 to the 10 into the difference in the velocities.
02:56
The velocity at the top is 7 .5.
03:04
The velocity at the bottom is 5...