Hydrostatic force on submerged curved surface

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Homework Help Overview

The discussion revolves around calculating the hydrostatic force on a submerged curved surface, specifically focusing on the volume calculation involved in determining the weight of the fluid. Participants are examining a formula presented in a solution that appears to represent an area rather than a volume.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the validity of a formula presented for volume, which includes terms that suggest it may actually represent an area. There is a request for clarification on the context of the problem and the specific example referenced.

Discussion Status

There is active engagement with participants seeking to clarify the formula and its application. Some participants express confusion over the document reference and the formula's correctness, indicating a lack of consensus on its interpretation.

Contextual Notes

Participants mention specific examples and page numbers from a textbook, indicating that the discussion is grounded in a particular educational resource. There are also notes on potential typographical errors in the formula being discussed.

febbie22
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Homework Statement



Hi i know how to do these problems but its calculating the weight of the fluid, which you have to do to minus it from the vertical force.

But in the solutions to the problem is say that the volume is R^2 - Pie *(R^2)/4 *1

The only thing i want to know is why is that the volume because I've never seen anything like it and if it is correct is it in all the problems so i can just remeber it.


Cheers
 
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Hi febbie22! :smile:

(have a pi: π and try using the X2 tag just above the Reply box :wink:)

Can you give us more detail about this problem?

(and there's no way that R2 - πR2/4 can be a volume … it's obviously an area :confused:)
 
Hi its question 11-19, i triedto put it on word but it didnt let me upload. And I've got the solutions to the problem. and so when it says to calculate the weight it says

rowg * (R^2 - Pie * (R^2)/4 * 1
 

Attachments

febbie22 said:
Hi its question 11-19, i triedto put it on word but it didnt let me upload. And I've got the solutions to the problem. and so when it says to calculate the weight it says

rowg * (R^2 - Pie * (R^2)/4 * 1

(please use the X2 tag just above the Reply box :wink:)

I can't find that formula … which page is it on? :confused:

(and it's spelt rho, and you must have missed out an h … that's still an area!)
 
oh sorry it example 11-2 on page 494

and its the weight of fluid block per m length

that i don't get
 
febbie22 said:
oh sorry it example 11-2 on page 494

and its the weight of fluid block per m length

that i don't get

I can't see a page 494 …

have you posted the correct document? :confused:
 

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