Physics
posted by Physics .
I'm given two cars A and B
Car A is 1100 kg and traveling at 11 m/s
Car B is 1400 kg and traveling at 15 m/s
and I'm asked to fidn the velocity of both is just the net velocity 4 m/s ???
I'm also to find the impulse and how would I do that???
impulse is chang in momentum over the force correct???
so what force do I use then if I am???
I'm also asked to find the change in kinetic energy how do I do that???

Physics 
drwls
Is there supposed to be a headon collision between the cars? or a rearrnd collision?
In either case, use conservation of momentum, and assume they stick together afterwards.
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