Object A has mass mA$=10$ kg and initial momentum pA$,$i$=<17,-5,0>$ kg$*$m$/$s$,$ just before it strikes object B$,$ which has mass mB $=14$kg$.$ Just before the collision object B has initial momentum pB$,$i $=<5,5,0>$kg$*$m$/$s$.$ The forces that A and B exert on each other are very large but last for a very short time. If we choose a time interval from just before to just after the collision, what is the approximate value of the impulse applied to the two$-$object system due to forces exerted on the system by objects outside the system?