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Homework Help: Vector addition car problem

  1. Jun 15, 2008 #1
    A car is driven 215 km west and then 85 km southwest. What is the displacement of the car from the point of origin?

    Shouldn't I be given an angle. Because it could be southwest at any angle. How would I do this?

    Thanks for the help.
  2. jcsd
  3. Jun 15, 2008 #2
    Southwest usually means 45 degrees towards south, from west or vice-versa.
  4. Jun 15, 2008 #3
    Really? Okay let me try that. But why would I be expected to know that? That's just stupid.
  5. Jun 15, 2008 #4
    Well it worked. Thanks
  6. Jun 15, 2008 #5
    Take a look at a compass and see why ;)
  7. Jun 15, 2008 #6
    Don't own a compass
  8. Jun 15, 2008 #7
    It's just convention when mentioning southwest that the angle is 45 degrees. It is also true when saying southeast, northeast, northwest.
  9. Jun 15, 2008 #8
  10. Jun 15, 2008 #9
    lol thanks for providing a compass. But i've gotten this problem ages ago.
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