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jc911

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HI All,

I have been out of education a long time and am now back at college.

One of my modules is Fluid Dynamics and I am beginning to struggle with the basics and could really use your help. I have attached a snip from one of the example questions below given to me by my lecturer.

I got the average pressure by using the formula, Pressure = density x gravity x height => 1.2 x 9.81 x 6m = 70.6Pa

Is this correct for the average pressure? Or should I have used half the height instead of the full height?

I got force by, Force = Pressure x area = 70.6 x (6x5) = 2118N

I am unsure how to get these answers?

Any advice is greatly appreciated as I do not only just want the answer but I want to be able to understand the entire mathematical process.

Thanks in advance.

I have been out of education a long time and am now back at college.

One of my modules is Fluid Dynamics and I am beginning to struggle with the basics and could really use your help. I have attached a snip from one of the example questions below given to me by my lecturer.

**For part 1:**I got the average pressure by using the formula, Pressure = density x gravity x height => 1.2 x 9.81 x 6m = 70.6Pa

Is this correct for the average pressure? Or should I have used half the height instead of the full height?

**For Part 2:**I got force by, Force = Pressure x area = 70.6 x (6x5) = 2118N

**For Part 3 and 4**I am unsure how to get these answers?

Any advice is greatly appreciated as I do not only just want the answer but I want to be able to understand the entire mathematical process.

Thanks in advance.

**By the way, if this is the incorrect site for this I would be grateful if you could advise on another site**#### Attachments

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