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Vectors - Components / A question about the angle?

  1. Oct 20, 2011 #1
    Is E22.3 N the same as ( 22.3 east of north ) ?

    Is it

    This angle
    | /
    | /
    | /
    | /
    -----------------x

    or this one
    |
    |
    |
    |
    |_____------- this angle
    -----------------

    the question is " A wind with a velocity of 40.3 KM/H blows [E22.3 N]. What is the north component of the velocity in Km/h?

    I know how to solve it but wondering which graph I am supposed to use to determine my answer. Is it 40.3sin22.3 or 40.3sin22.3

    Thanks in advance
     
    Last edited: Oct 20, 2011
  2. jcsd
  3. Oct 20, 2011 #2

    Delphi51

    User Avatar
    Homework Helper

    No. It means 22.3 degrees north of east. Picture your boat heading east (the initial direction mentioned), then turning 22.3 degrees toward north. So use the sine.
     
  4. Oct 20, 2011 #3
    Thank you very much ^^
     
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