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The newton-meter (also newton meter; symbol N⋅m or N m) is a unit of torque (also called moment) in the SI system. The newton-meter is equal to the torque generated by a force of one newton applied perpendicularly to a moment arm of one-meter length. One pounds-force foot (lb.-ft) equals 1.356 Newton meters. One Newton meter equals 0.7375 lb.-ft.

  • This unit is also used as a  unit of work or energy, wherein it is equivalent to the more common and standard SI unit of energy.
  • In this usage, the meter term represents the distance traveled or the displacement in the direction of force; not the perpendicular distance from a fulcrum as it does when used to express torque. 

Newton Second 

 The newton second is the derived unit of impulse. It is dimensionally equivalent to the momentum unit kilogram meter per second.

  • It can be used to determine the resultant of the velocity of a mass if a force accelerates the mass for a specific time interval.