Two cars A and B each of mass 10^3 kg are moving on parallel tracks separated by a distance of 10 m, in same direction with speeds 72 km/h and 36…

Two cars $\displaystyle A$ and $\displaystyle B$ each of mass $\displaystyle 10^3 \mathrm{~kg}$ are moving on parallel tracks separated by a distance of $\displaystyle 10$ m, in same direction with speeds $\displaystyle 72$ km/h and $\displaystyle 36$ km/h. The magnitude of angular momentum of car $\displaystyle A$ with respect to car $\displaystyle B$ is $\displaystyle \_\_\_\_$ J.s.