Ryan Y. answered 06/16/24
Univ. level Calculus lecturer. Experienced former AP Calc/Phys inst.
Hi Annet,
My suggestion is to apply conservation of momentum to the system.
You will need to apply COM in both the x-direction and the y-direction.
Keep in mind that the final momentum of the two car system can be broken into x and y components.
I hope this helps :^)>