Posted by **Orla** on Wednesday, November 7, 2012 at 4:44pm.

John’s mass is 81.0 kg, and Barbara’s is 62.4 kg. He is standing on the x axis at xJ = +9.41 m, while she is standing on the x axis at xB = +4.34 m. They switch positions. How far and in which direction does their center of mass move as a result of the switch?

Distance moved by center of mass =? m toward the origin

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