So we've just finished our unit on Momentum and Energy in our grade 12 Physics class and today we were given a basic assignment that is to help us think "out-side" the box of typical questions. This particular question has me going insane...I just can't make the connection as to what to do.(adsbygoogle = window.adsbygoogle || []).push({});

The question is:

Two cars of identical mass are approaching the same intersection, one from the south and one from the west. They reach the intersection at the same time and collide. The cars lock together and move away at an angle of [East 22 degrees North]. Which car was going faster before the collision? Explain your reasoning and include all calculations.

Normally with a question like this, I'd be fine trying to solve it with all of the given variables and such (Using the m1v1i + m2v2i = m1v1f + m2v2f equation), but since this gives almost no information, I am at a loss as to how to solve it. Using logic, I know that the car traveling to the east is the one traveling faster since the final vector is going 68 degrees east, while only going 22 degrees north. How do I answer that using algebra with so little specific information? Any sort of help to point me in the right direction would be awesome...

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# Homework Help: Momentum in 2D question

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