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?
19.3 joules
21.9 joules
38.5 joules
43.0 joules
50.8 joules
Answers: 1
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Object a has of mass 7.20 kilograms, and object b has a mass of 5.75 kilograms. the two objects move...
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