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qwerty5050
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Homework Statement
2 cars of equal mass and traveling in opposite directions on a wet and slippery road collide and lock together after impact. Neither car brakes before the collision. The tangled wreck moves off in an easterly direction at 5 m/s immediately after the collision. if one car was traveling due west at 20 m/s immediately before the collision and the other at 30 m/s.
What fraction of the initial kinetic energy as conserved during the collision?
Homework Equations
Ek=1/2mv^2 - this is the only equation i know that has to do with kinetic energy
The Attempt at a Solution
I have no idea what i have to do
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