Amy (150 lbs) and Gwen (50 lbs) are standing on slippery ice and push

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Amy (150 lbs) and gwen (50 lbs) are standing on slippery ice and push off each other.    if amy slides at 6 m/s, what speed does gwen have?this question is part of unit 4 concepts quiz

jkeslin · Accepted Answer

18 m/sThe initial momentum is zero, so the momenta of Amy and Gwen must be equal and opposite.  Since p = mv,  then if Amy has 3 times more mass, we see that Gwen must have 3 times more speed.

Amy (150 lbs) and Gwen (50 lbs) are standing on slippery ice and push off each other. If Amy slides at 6 m/s, what speed does Gwen have?

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