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. :$\backslash vec\; F\; \backslash cdot\; t\; =\; \backslash Delta\; m\; \backslash vec\; v$ It can be used to identify the resultant velocity of a mass if a force accelerates the mass for a specific time interval.

Definition

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

Examples

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

References

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