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# in a crash test, a car hits a wall with an average force of 1.23 x 10^7 N [S] over an interval of 21ms. Calculate the impulse. ?

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- billrussell42Lv 79 months agoFavorite Answer
Impulse = change in momentum = FΔt = 1.23e7 N x 0.021 s = 258300 kg•m/s

Impulse (N•s or kg•m/s) is change in momentum, dP

Force = dP/dt

Impulse dP = ∫ F dt

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