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OpenStudy (anonymous):
Two balls with masses of of 1.8 kg and 6.2 kg travel toward each other at speeds of 9 m/s and 4.4 m/s, respectively. If the balls have a head-on inelastic collision and the 1.8-kilogram ball recoils with a speed of 8.80 m/s, how much kinetic energy is lost in the collision?
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OpenStudy (turingtest):
calculate the initial energy of the system, and the energy after the collision. take their difference.
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