Just mathematically, we already know that momentum is conserved,

dpTot/dt = 0

pTot = p1 + p2 = constant

In terms of impulse, we can understand this from a somewhat different point of view,

This means that

and, again, we see that



1D Collisions
Return to ToC, Ch9, Linear Momentum

(c) Doug Davis, 2001; all rights reserved