Torque information

Torque
Torque
	Relationship between force F, torque τ, linear momentum p, and angular momentum L in a system which has rotation constrained to only one plane (forces and moments due to gravity and friction not considered).
Common symbols	, M
SI unit	N⋅m
Other units	pound-force-feet, lbf⋅inch, ozf⋅in
In SI base units	kg⋅m2⋅s−2
Dimension

In physics and mechanics, torque is the rotational analogue of linear force.^[1] It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically ${\boldsymbol {\tau }}$ , the lowercase Greek letter tau. When being referred to as moment of force, it is commonly denoted by $M$ . Just as a linear force is a push or a pull applied to a body, a torque can be thought of as a twist applied to an object with respect to a chosen point; for example, driving a screw uses torque, which is applied by the screwdriver rotating around its axis. A force of three newtons applied two metres from the fulcrum, for example, exerts the same torque as a force of one newton applied six metres from the fulcrum.

^ Serway, R. A. and Jewett, J. W. Jr. (2003). Physics for Scientists and Engineers. 6th ed. Brooks Cole. ISBN 0-534-40842-7.

[1] Serway, R. A. and Jewett, J. W. Jr. (2003). Physics for Scientists and Engineers. 6th ed. Brooks Cole. ISBN 0-534-40842-7.

Torque information

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Torque
Relationship between force F, torque τ, linear momentum p, and angular momentum L in a system which has rotation constrained to only one plane (forces and moments due to gravity and friction not considered).
Common symbols	$\tau$ , M
SI unit	N⋅m
Other units	pound-force-feet, lbf⋅inch, ozf⋅in
In SI base units	kg⋅m²⋅s⁻²
Dimension	${\mathsf {M}}{\mathsf {L}}^{2}{\mathsf {T}}^{-2}$

Classical mechanics
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${\textbf {F}}=m{\textbf {a}}$ Second law of motion
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