Posted by **Elizabeth** on Monday, October 22, 2012 at 8:27pm.

John's mass is 92 kg, and Barbara's is 67 kg. He is standing on the x axis at xJ = +7.50 m, while she is standing on the x axis at xB = +2.50 m. They switch positions. How far and in which direction does their center of mass move as a result of the switch?

Answer in distance (m)

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