Question 6.4: Applying the Method of Sections The truss in Fig. 6.22 suppo...

Engineering Mechanics: Statics

Applying the Method of Sections

The truss in Fig. 6.22 supports a 100-kN load. The horizontal members are each 1 m in length. Determine the axial force in member CJ, and state whether it is in tension or compression.

Strategy
We need to obtain a section by cutting members that include member CJ. By cutting members CD, CJ, and IJ, we will obtain a free-body diagram with three unknown axial forces.

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