In classical mechanics, if we consider the motion of a particle of mass m, then
m=constant\vec{v}=d\vec{r}/dt\vec{a}=d\vec{v}/dt\vec{j}=d\vec{a}/dt\ldots
Definition of Momentum (\vec{M})
\vec{M} \; = \int_a^b m \, \vec{a} \, dt \; = \int_a^b m \,d\vec{v} \; = \Delta \; m \, \vec{v}
If...