- #1
Tanya Sharma
- 1,540
- 135
Hello
I am having difficulty in comprehending the basics of fluid mechanics . I have few questions which I would like to put one at a time , so as not to create any confusion .
In the following attachment , a container with a liquid rests on a surface .I would like to understand what are the forces acting on a liquid molecule(marked in red) at the surface.
1.Atmospheric Pressure P0 acting vertically downwards(Purple)
2.Pressure from the surrounding liquid Psur acting vertically upwards(black)
3.Weight of the particle W acting vertically downwards(green)
Is it correct to say Psur = P0 + W ?
But pressure at the surface due to surrounding liquid Psur should be equal to P0 . Does that mean we neglect W ?
Edit :The red dot represents a liquid molecule at the surface .
I am having difficulty in comprehending the basics of fluid mechanics . I have few questions which I would like to put one at a time , so as not to create any confusion .
In the following attachment , a container with a liquid rests on a surface .I would like to understand what are the forces acting on a liquid molecule(marked in red) at the surface.
1.Atmospheric Pressure P0 acting vertically downwards(Purple)
2.Pressure from the surrounding liquid Psur acting vertically upwards(black)
3.Weight of the particle W acting vertically downwards(green)
Is it correct to say Psur = P0 + W ?
But pressure at the surface due to surrounding liquid Psur should be equal to P0 . Does that mean we neglect W ?
Edit :The red dot represents a liquid molecule at the surface .
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