Also known as force couple, pure moment, couple of forces
system of forces with a resultant moment but no resultant force
In physics, a couple is a pair of forces that are equal in magnitude but opposite in their direction of action. A couple produces a pure rotational motion without any translational form.
Two forces acting on opposite direction with equal magnitude.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).