Principle of Moments: Varignon's Theorem Example

Static analysis in 2-dimensions often requires the calculation of the moment created by a force vector around some arbitrary point. In this video, Dr. Garrett Love provides an example application of Varignon's theorem.

Do note a calculation error at 7:33. A common error in applying Varignon's theorem is to forget to reverse components, which unfortunately happened in the example! (swapping the horizontal component of 6/5 N with the vertical component of 8/5 N). There is a verbal explanation at 7:58, and the correct moment around the pivot point should be only 15 N cm.

This video was created for classes in the department of Engineering and Computer Science at NCSSM.

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