Fluid mechanics proof

  • Thread starter dopey9
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  • #1
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Can someone help me with this proof

Homework Statement





Homework Equations





The Attempt at a Solution

 

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Answers and Replies

  • #2
arildno
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Well, Cartese away first, and we'll help you if you stumble! :smile:
 
  • #3
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I would recommend starting by supposing F is made up by three components, F_1 , F_2 ,F_3 then just expand out the left hand side!

It is tidous but you will see it will fall out

:yuck:
 
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