Problem

The bars in Fig. 1 have the same cross-sectional area. There is no stress in the bars befo...

The bars in Fig. 1 have the same cross-sectional area. There is no stress in the bars before the load is applied. Each bar is a 0.5 in. square.

(a) Find the force in each bar.


(b) Find the force in each bar if the temperature drops 100°F.

Figure 1

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