Object A has of mass 7.20 kilograms, and object B has a mass of 5.75 kilograms. The two objects move along a straight line toward each other with velocities +2.00 meters/second and -1.30 meters/second respectively. What is the total kinetic energy of the objects after the collision, if the collision is perfectly elastic

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uhhhhhh..

ikr i dont understand

m1=7.20kg and m2=5.75kg v1=2m/s and v2=-1.3 that's all is given

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