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Learning physics on my own need a little help

  1. Nov 8, 2012 #1
    what is the direction of a person that walks 3.0-km North and 4.0-km East?
    and can you tell me how you got the answer please
     
  2. jcsd
  3. Nov 8, 2012 #2

    SammyS

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    Hello oG riT. Welcome to PF !

    To answer your question, you need to use trigonometry.

    Is that question worded exactly as it was given to you in the textbook?
     
  4. Nov 8, 2012 #3
    Use Tan function to find the angle.


    (θ represents an angle)
    Tanθ = opp/adj
    = 4km / 3km
    θ = tan-1(4km/3km)

    So the direction would be [N θ E]
     
  5. Nov 8, 2012 #4
    yes thats how it was worded
     
  6. Nov 9, 2012 #5
    i got 36.9 is that right?
     
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