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Two friends with mass 60.0 kg and 40.0 kg run directly toward each other with speeds 3.0 m/s and 2.0 m/s respectively. If they hold on to each other after they collide, their combined speed just after the collision will be:A. 0 m/sB. 1.0 m/sC. 1.6 m/sD. 2.0 m/s
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