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Newton metreNewton metre is the unit of moment (torque) in the SI system. The symbolic form is N m or N·m,[1] and sometimes hyphenated newton-metre. It is a compound unit of torque corresponding to the torque from a force of one newton applied over a distance arm of one metre. Additional recommended knowledgeWhile a newton metre is dimensionally equivalent to a joule, the SI unit of energy and work, in a newton metre, the force and the distance arm are normal to each other, while in the joule, force and distance are co-linear. Another fundamental difference between the two is the fact that work is a scalar quantity, expressed as dU=F•dr, whereas the moment of a force or torque is defined as a cross product and as such is a vector quantity. Conversion factors
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Newton_metre". A list of authors is available in Wikipedia. |