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Homework Help: Two dimensional physics problem

  1. Sep 13, 2009 #1
    1. Two soccer players, Mary and Jane, begin running from nearly the same point at the same time. Mary runs in an easterly direction at 4.45 m/s, while Jane takes off in a direction 63.6o north of east at 5.12 m/s

    How long is it before they are 24.3 m apart?

    How far apart are they after 4.09 s?

    I've tried setting up this equation so many times, but I'm getting no where. I know I cannot use the Pythagorean Theorem so what do I need to do?
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Sep 13, 2009 #2
    Think of the sides as velocity*time ratios. Then use trigonometry to find the third side's ratio. Use d=rt to find your answers.
  4. Sep 13, 2009 #3
    Law of Sines or Cosines perhaps?
  5. Sep 13, 2009 #4
    I thought you could only use those rules in a right triangle where the other two sides were 45 degrees. one of the sides of this right triangle is 63.6 degrees.

    I know the problem should be easy, but it keeps fooling me
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