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Mechanical Engineering: Trusses, Bridges & Other Structures (9 of 34) What are Internal Forces? - YouTube
![Examining Forces on Bridges. At any given time, two main forces act upon a bridge: compression and tension. It is the job of engineers to design bridges. - ppt download Examining Forces on Bridges. At any given time, two main forces act upon a bridge: compression and tension. It is the job of engineers to design bridges. - ppt download](https://images.slideplayer.com/20/5955301/slides/slide_3.jpg)
Examining Forces on Bridges. At any given time, two main forces act upon a bridge: compression and tension. It is the job of engineers to design bridges. - ppt download
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