equilibrium. It is constructed using two-force members, joined at their ends.  I have given you all the external forces acting on the structure. You do not need to find reaction (support) forces. a) Label every member as tension T, compression

Elements Of Electromagnetics
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Q5) Method of Joints 

The structure on the right is in static equilibrium. It is constructed using two-force members, joined at their ends. 

I have given you all the external forces acting on the structure. You do not need to find reaction (support) forces.

  1. a) Label every member as tension T, compression C, or zero-force Z. Draw arrows on every non-zero member to indicate the direction of the tension or compression forces. 
  2. b) Use the Method of Joints to calculate the magnitude of forces F1 , F2 , and F3. Follow the recipe and show all your work. Clearly draw free-body-diagrams and write Newton’s 2nd law for every joint you study. 
30N
60
60,
60°
60
60
20N
10N
Transcribed Image Text:30N 60 60, 60° 60 60 20N 10N
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