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Water pressure-displacament

  • Thread starter alibaba2
  • Start date
  • #1
32
0
hi...
i have this question:
what would be the force in kilograms to press the entire volume of water from the container up the pipe at 30ft. ( some of the water will remain in the pipe of course).

see image:

img374.imageshack.us/my.php?image=graphic1qh8.jpg

BIG thank you

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
32
0
anybody??

anybody???
 
  • #3
tiny-tim
Science Advisor
Homework Helper
25,832
249
Hi alibaba2! :smile:

(I assume the pipe is open at the top, so the water just spills out and disappears.)

You need to calculate the force needed to lift a 2 ft cube of water to the top of a 30 foot pipe.

So the formula you should use is … ? :smile:
 
  • #4
32
0
help

no idea whatsoever........i had the formula written down,but i can't access my notes from my current location....

any help tim????

10x
 
  • #5
tiny-tim
Science Advisor
Homework Helper
25,832
249
Well, what principle do you think would help … energy? … momentum? … work? … something else?

Hint: how much force is needed to raise a one-cubic-foot bucket of water a height of one foot? :smile:
 
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