Please check out the playlist containing updated videos on the same topic: [2015] Engineering Mechanics - Statics [with closed caption]
https://www.youtube.com/playlist?list=PLLbvVfERDon3mb73rkKIeFA8Q7yt-7tku
Dr. Wang's contact info: Yiheng.Wang@lonestar.edu
Internal forces -- Introduction and Method of Sections
Danville Community College EGR 140 Engineering Mechanics - Statics
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