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Homework Help: Exercise from a foreigner (boat, river and physics)

  1. May 21, 2007 #1
    1. The problem statement, all variables and given/known data
    Hello! I'm the foreigner so I'm sorry for my English if it won't be good. I have a big problem with one exercise. I think that I have to use Galilean Transformation but I don't know how to start. There is the content:
    A motorboat is flowing by the river upstream with the constant speed. Suddenly lifebuoy has fallen out of the boat. People in the boat discovered it after the time t0 from the moment of its falling out. Then the boat turned back and after the time t (from the turning back) it reached to the lifebuoy which was flowing with the stream. Justify by 2 ways that t=t0: solve this problem in the reference frame connected with the water and in the reference frame connected with the bank of the river. Make all the necessery calculations.
    Thanks a lot in advance!

    2. Relevant equations


    3. The attempt at a solution
    I tried to write some equations but with no success :(
  2. jcsd
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