What Is A Newton Meter

SI unit of measurement of torque

For the instrument that measures forces in newtons, see Spring scale.

Newton-metre
Ane newton-metre is the torque resulting from a force of one newton applied perpendicularly to the stop of a moment arm that is 1 metre long.
General information
Unit arrangement	SI
Unit of measurement of	torque
Symbol	Northward⋅m or N m
Conversions
1 Northward⋅m in ...	... is equal to ...
FPS system	0.73756215 lbf.ft
inch⋅pound-force	8.8507 in lbf
inch⋅ounce-force	141.6 in oz

The newton-metre (as well newton metre or newton meter; symbol N⋅m ^[ane] or Northward m ^[1]) is the unit of torque (as well called moment) in the International Organisation of Units (SI). 1 newton-metre is equal to the torque resulting from a force of 1 newton applied perpendicularly to the end of a moment arm that is one metre long. The nonstandard note Nm occurs in some fields.

The unit is besides used less ordinarily every bit a unit of piece of work, or energy, in which case information technology is equivalent to the more mutual and standard SI unit of energy, the joule.^[2] 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 every bit it does when used to express torque. This usage is generally discouraged,^[iii] since it can lead to confusion as to whether a given quantity expressed in newton-metres is a torque or a quantity of energy.^[4] However, since torque represents free energy transferred or expended per angle of revolution, one newton-metre of torque is equivalent to one joule per radian.^[four]

Newton-metres and joules are dimensionally equivalent in the sense that they have the aforementioned expression in SI base units,

${\displaystyle 1\,{\text{N}}{\cdot }\mathrm {m} =1\,{\frac {{\text{kg}}{\cdot }{\text{m}}^{ii}}{{\text{south}}^{2}}}\quad ,\quad 1\,\mathrm {J} =1\,{\frac {\mathrm {kg} {\cdot }\mathrm {1000} ^{2}}{\mathrm {s} ^{2}}}}$

just are distinguished to avoid misunderstandings when a torque is mistaken for an energy or vice versa. Like examples of dimensionally equivalent units include Pa versus J/m^three, Bq versus Hz, and ohm versus ohm per square.

Conversion factors [edit]

• 1 kilogram-force metre = nine.80665 N⋅k^{[five] [6]}
• 1 newton-metre ≈ 0.73756215 pound-strength-feet
• i pound-foot ≡ 1 pound-force-foot ≈ 1.35581795 Due north⋅g
• ane ounce-inch ≡ 1 ounce-strength-inch ≈ 7.06155181 mN⋅m (millinewton-metres)
• 1 dyne-centimetre = 10⁻⁷ N⋅m

See also [edit]

• Bending moment
• Bound calibration
• Torque tester
• Newton-second, the derived SI unit of impulse

References [edit]

1. ^ ^{a b} BIPM – unit symbols
2. ^ For instance: Eshbach'south handbook of technology fundamentals - x.4 Engineering Thermodynamics and Oestrus Transfer "In SI units the basic unit of free energy is newton-metre".
3. ^ Fundamentals of Physics, 9th edition by Halliday Resnick Ralker, p. 309. "The SI unit of measurement of torque is the newton-meter. In our give-and-take of free energy we called this combination the joule. But torque is not work and torque should be expressed in newton-meters, not joules. google books link
4. ^ ^{a b} BIPM - special names
5. ^ Mechanical Engineering Formulas Pocket Guide, p6
6. ^ Curtailed encyclopedia of plastics, by Donald V. Rosato, Marlene 1000. Rosato, Dominick V. Rosato, p621

What Is A Newton Meter,

Source: https://en.wikipedia.org/wiki/Newton-metre

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