3-494: The newton-metre or newton-meter (also non-hyphenated, newton metre or newton meter ; symbol N⋅m or N m ) is the unit of torque (also called moment ) in the International System of Units (SI). One newton-metre is equal to the torque resulting from a force of one newton applied perpendicularly to the end of a moment arm that is one metre long. The unit is also used less commonly as
6-470: A given quantity expressed in newton-metres is a torque or a quantity of energy. "Even though torque has the same dimension as energy (SI unit joule), the joule is never used for expressing torque". Newton-metres and joules are dimensionally equivalent in the sense that they have the same expression in SI base units , but are distinguished in terms of applicable kind of quantity , to avoid misunderstandings when
9-411: A unit of work , or energy , in which case it is equivalent to the more common and standard SI unit of energy, the joule . In this usage the metre term represents the distance travelled or displacement in the direction of the force, and not the perpendicular distance from a fulcrum as it does when used to express torque. This usage is generally discouraged, since it can lead to confusion as to whether
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