(adsbygoogle = window.adsbygoogle || []).push({}); Kinetic Energy and cars.... Please help

1. The problem statement, all variables and given/known data

One car has twice the mass of a second car, but only half as much kinetic Energy. When both cars increase their speed by 6.0 m/s, they then ave the same kinetic energy. What were the original speeds of the two cars.

2. Relevant equations

Im not sure but i think its:

KE=.5mv_{f}^{2}-.5mv_{i}^{2}

3. The attempt at a solution

I manipulated the above equation by making KE multiplied by .5 and then removing the .5 from both masses.This however got me no where so could someone please help?

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# Homework Help: Kinetic Energy and cars Please help

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