posted by Julie .
What is the momentum of a two-particle sys- tem composed of a 1300 kg car moving east at 100 m/s and a second 1300 kg car mov- ing west at 35 m/s? Let east be the positive direction.
Answer in units of kg · m/s
p1•v1 –p2•v2 = 1300•100 – 1300•35 = =9.75•10^4 kg•m•s^-1