Formula Impulse Impulse    Force    Time

Impulse

Unit
Impulse is (here: approximately) the difference between the final momentum $$p_2$$ and the initial momentum $$p_1$$. $$\Delta p$$ is therefore a change of momentum of a body: $$\Delta p = p_2 - p_2$$.

Force

Unit
Force exerted on a body that has resulted in an impulse (change of momentum).

Time

Unit
Time period during which the force $$F$$ was applied to a body.