The newton-second (also newton second; symbol: N⋅s or N s) is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s). One newton-second corresponds to a one-newton force applied for one second. :\vec F \cdot t = \Delta m \vec v It can be used to identify the resultant velocity of a mass if a force accelerates the mass for a specific time interval.


Momentum is given by the formula: :\mathbf = m \mathbf, * \mathbf is the momentum in newton-seconds (N⋅s) or "kilogram-metres per second" (kg⋅m/s) * m is the mass in kilograms (kg) * \mathbf is the velocity in metres per second (m/s)


This table gives the magnitudes of some momenta for various masses and speeds.

See also

*Power factor *Newton-metre, the derived SI unit of torque *Orders of magnitude (momentum), for examples of momenta


Category:Classical mechanics Category:SI derived units Category:Units of measurement {{Measurement-stub