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Flow Velocity

  1. Feb 24, 2009 #1
    1. The problem statement, all variables and given/known data

    A motorboat is going downstream overcame a raft at a Point A; t=60 min later it turned back and after some time passed the raft at a distance l=6km from point A. Find the flow velocity assuming the duty of the engine to be constant.

    2. Relevant equations

    Average Speed,Displacement, Average Velocity

    3. The attempt at a solution
    I drew a picture and got confused. I think I don't understand the question.
  2. jcsd
  3. Feb 25, 2009 #2


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    Science Advisor
    Homework Helper

    Hi abhikesbhat! :smile:

    The raft is moving at the same speed as the river.

    The boat is moving at a fixed speed relative to the river.

    Call that fixed speed v, and the time for the second part of the boat's journey T, and write a couple of equations for v and T. :smile:
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