00:01
In this video, we are focused on finding the amount of water interred into the control volume during a specific time period based on the given information.
00:10
So here we can say during time interval of delta t, here we can write that very thing and it is going to be equals to like this, that is delta t.
00:22
So for this very time interval, the control volume moves left.
00:26
Let us here write control, volume and this very thing moves to the left at a distance of.
00:36
So distance will be speed multiplied with time that is going to be equal to.
00:41
So d is for distance and that is equal to v -c -v times delta t and that will be equal to 2 times delta t.
00:49
And then here we can say that the water was at the nozzle exit and it moved.
00:56
Let us here write for nozzle, so noaa double z l e, and then it will be that it moves at a distance of v delta t and this time the value of v will be different right and that is equal to 10.
01:13
So 10 times delta t and this is to the right.
01:19
So here we can write that very information also and this very information can be well understood if we take the help of a figure.
01:26
So the figure will look like this.
01:30
Now with the help of this very figure we can say that amount of the system outside the control volume will be, so we can write the statement that it is amount of system and this will be here equals to, remember it is outside the control volume.
01:50
So that very thing can be written over here as c -o -n -t -r -o -f -s.
01:56
And then it will be here volume so this thing will be equal to pi divided by 4 and then here we have 0 .1 raised to the power 2 and then here we have 3 minus 12 delta t and this will be here equals to 0 .0141 and then here we are going to have meter cube at t is equal to 0 .0.
02:26
0 .1 seconds.
02:30
Now here we can say that at t is equals to it will be basically 0 .3 seconds.
02:40
We are going to have the value of 3 minus 12 delta t to be equals to negative 0 .6 meter.
02:50
That is the entire system is within the control volume...