dlaskey5429 dlaskey5429
  • 19-12-2022
  • Physics
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two people are initially standing still on frictionless ice. they push on each other so that one person, of mass 120 kg, moves to the left at 2 m/s, while the other person, of mass 80 kg, moves to the right at 3 m/s. what is the velocity of their center of mass?

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