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Tortoise vs Hare

  1. Apr 16, 2012 #1
    1. The problem statement, all variables and given/known data
    Help me with this particular problem.

    A tortoise and a hare are having a 1000-meter race. The tortoise runs the race at a constant speed of 2.30 cm/s. The hare moves at an average speed of 1.50 m/s for 10.0 minutes and then decides to take a nap. After waking up from the nap, the hare recognizes that the tortoise is about to cross the finish line and immediately accelerates from rest with a constant acceleration of 0.500 m/s/s for the remaining distance of the race. If the tortoise wins by a hair (no pun intended), then what is the time in hours that the hare napped?

    t for tortoise=50 000s t for hare without nap=620s

    2. Relevant equations



    3. The attempt at a solution
    I get 13.7hr when the answer is 11.9hr subtracting those amounts.
     
  2. jcsd
  3. Apr 16, 2012 #2

    ehild

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    How did you get that result?

    ehild
     
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