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Homework Help: Acceleration Logic is this right?

  1. Sep 18, 2007 #1
    1. The problem statement, all variables and given/known data
    A speed skater moving across frictionless ice at 8m/s hits a 5m patch of ice. She slows steadily then continues at 6m/s. What is her acceleration on the rough ice?

    2. Relevant equations
    Not sure

    3. The attempt at a solution
    6m/s - 8m/s = -2m/s * 1/5m = 1/10 s

    -2m/s * 1/10s = -1/5m/s^2

    I'm not sure if my logic follows through
  2. jcsd
  3. Sep 18, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    I don't understand what you are trying to do. If you're trying to find the time it takes to traverse that 5m patch, consider the average speed of the skater during that time. Then you can use Distance = ave speed * time to find the time.
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