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OpenStudy (anonymous):

A 12000kg car traveling east at 10 m/s collides with a 500kg car traveling west at 5m/s. After the collision, the 1200kg car continues east at 4 m/s What is the speed/direction of the 900kg car after and what is it s initial and final kinetic energies. Kind regards.

OpenStudy (anonymous):

12000kg(10) + 500 (-5) = 1200 (4) + 500v

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