FE Civil Exam Prep 26, Resultants of Force Systems — 2D and 3D
Aug 5, 2026
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- How to resolve 2D forces into Rx and Ry components to find the resultant magnitude and direction.
- The critical exam trap of determining the correct quadrant for the resultant angle based on the signs of the force components.
- The extension of resultant calculations to 3D systems by including the z-component for both force and direction.
- The key difference between concurrent systems (only a resultant force) and non-concurrent systems (a resultant force and a resultant moment).
- That a couple creates a pure moment with zero resultant force, allowing its effect to be applied anywhere on a body.
For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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