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Homework Help: Vectors and Components Question

  1. Jan 13, 2008 #1
    1. The problem statement, all variables and given/known data

    Use the components method to solve this problem.
    A river is flowing at 1.75 m/s. The river is 820m wide. You are on a boat that is going dock on the other side of the river, and 940 m upstream. If you need to get to the other dock in 10 minutes, what must the speed of the boat be with respect to the water?

    2. Relevant equations


    3. The attempt at a solution

    Well i assumed that (as can be seen in my attached picture) the boat was moving in a diagonal direction, so I knew that it would be moving in both the "x" and "y" direction.


    940m= 0+[tex]\frac{1}{2}[/tex](600s)([tex]V_{1}[/tex]+0)


    820m= 0+[tex]\frac{1}{2}[/tex](600s)([tex]V_{1}[/tex]+1.75m/s)

    3.13+.98= 4.11m/s = [tex]V_{1}[/tex]

    Can someone please tell me if this method is correct?? If not, please explain. Thanks so much!

    Attached Files:

  2. jcsd
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