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Homework Help: Finding position given displacement, velocity

  1. Oct 9, 2008 #1
    1. The problem statement, all variables and given/known data
    A hare and tortoise compete in a race over a course of 3.70km long. The tortoise crawls straight and steadily at its max speed of .900m/s toward the finish line. The hare runs at its max speed of 1.00m/s toward the goal for .800 km and then stops to taunt the tortoise. Assume that, when moving, both animals move steadily at their respective max speed.

    2. Relevant equations
    How close to the goal can the hare let the tortoise approach before resuming the race, which tortoise wins in a photo finish?

    3. The attempt at a solution
    I drew the picture but couldnt get anywhere. I thought that i would have to use a kinematic equation but not all the givens are given....
  2. jcsd
  3. Oct 10, 2008 #2


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    Staff Emeritus
    Science Advisor
    Homework Helper

    You can use kinematic equations. a=0, which should simplify things for you.

    Note, for the hare this only works once it starts moving again.
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