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Static truss

  • Thread starter boyongo
  • Start date
  • #1
27
0
Im having trouble understating this:

The last part:

DEz=8333N(5/15) where does this come from?

15m is the hight and 5m is the base of the triangle.
 

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Answers and Replies

  • #2
92
0
It's the horizontal component of DE i.e FDEcosθ
where cosθ = Opposite/Adjacent = (15/5)
 
  • #3
27
0
but isn't cosine adjacent/Hypotenuse?
 
  • #4
92
0
Oh yes, sorry!
 

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