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Vector addition using components

  1. Aug 29, 2009 #1
    1. The problem statement, all variables and given/known data

    You will be hiking to a lake with some of your friends. the map says you will travel 1.6 mi north then 2.2 mi in a direction 35 degrees east of north, then finally 1.1 mi in a direction 15 degrees north of east. how far will you be from where you started and what direction will you be from your starting point?



    3. The attempt at a solution

    I have no idea where to start. I drew a graph with 1.6 mi on the y axis going north.
     
  2. jcsd
  3. Aug 30, 2009 #2
    When you have a right triangle, remember the definition of the sine and cosine of an angle. Try to use that to write down the x component and y component of each part of the motion. Add up all the x components, and in a separate step add up all the y components.
     
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