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Can someone help me out?

  1. Aug 31, 2006 #1
    Mary runs 10 kilometers in 40 minutes. What is her average speed in meters per second?

    i dont understand and its only like the 4th day of school.
  2. jcsd
  3. Aug 31, 2006 #2


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    Homework Helper

    do you know what speed is?

    do you know how a kilometer is related to a meter?
    do you know how a second is related to a minute?
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