| Definition: | vector quantity equal to the integral of force F with respect to time t, thus I=∫t2t1Fdt over a time interval [t1, t2] NOTE 1 For a time interval [t1, t2], impulse is equal to the change of momentum p, thus I = p(t2) − p(t1) = Δ p. NOTE 2 In French, the term "impulsion" has also another meaning corresponding to English "pulse". NOTE 3 The coherent SI unit of impulse is newton second, N⋅s.
|