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The Toaster's Travel (vectors)

  1. Nov 29, 2011 #1
    1. The problem statement, all variables and given/known data
    Eduardo the samurai toaster was out for an evening stroll and went 120 m due north then turned and went 72m due west. Find the magnitude and direction of the dog's displacement.


    2. Relevant equations
    a^2+b^2=c^2



    3. The attempt at a solution
    sqrt of (72^2+72^2)= 139.94m NW
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 30, 2011 #2

    BruceW

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    Homework Helper

    samurai toaster / dog? I don't know why you're talking about such weird objects. But anyway, what the object is doesn't matter.

    In your answer, you got the magnitude of 139.94m correct, (but the working was incorrect, I'm guessing you just typed it wrong).

    The question also asked for the direction the object went. You wrote NW, but actually it wasn't exactly north-west, since he travelled further north than he travelled west.

    To work out the direction, just draw a diagram of the situation, and you can work out the angle which he was walking with respect to north.
     
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