Moments and couples2D
Varignon theorem
Explore force moments, Varignon’s theorem, pure couples, equivalent force-couple systems, and spatial axis moments.
Open the complete lessonEngineering simulation studio
Purpose-built 2D FBDVarignon’s theorem demonstrator
Compare the direct cross product with the sum of moments of Cartesian components.
component momentsdirect momentidentity
Engineering model scope
Category
Moments and couples
Idealization
Forces act on a rigid body and moments follow the displayed right-hand sign convention.
Acceptance check
Compare direct and component moments or project r × F onto the selected axis.