Problem 354 | Equilibrium of Non-Concurrent Force System

Problem 354
Compute the total reactions at A and B on the truss shown in Fig. P-354.
 

354-roof-truss.gif

 

Solution 354

 
spiritualshadow

how did you get the side of the triangle= square root of 5, 2 and 1.in the force 22.4kn?
im just newbie for this. thanks!

Jhun Vert
Jhun Vert's picture

The slope of the top chord is 1 vertical to 2 horizontal. The 22.4 kN force is perpendicular to the top chord thus the slope is 2 vertical to 1 horizontal.

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