# Why is it useful to express impulse in terms of momentum ?

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- DixonLv 74 weeks ago
Assuming constant mass, it is relatively easy to measure velocity before and after an impulse.

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- Anonymous4 weeks ago
F = m*a (Newton dixit)

if you multiply both terms by the time t you get :

F*t = m*a*t

since a*t = V, then :

F*t = m*V

The usefulness depends upon the problem you have to solve an the initial data you are given

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