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Relative Motion

  1. Feb 26, 2009 #1
    1. The problem statement, all variables and given/known data
    Snow is falling vertically at a constant speed of 6.9 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight, level road with a speed of 79 km/h? _________ degrees

    2. Relevant equations

    3. The attempt at a solution
    No idea where to begin! Help please!!
  2. jcsd
  3. Feb 26, 2009 #2


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    Start with how many m/s the car is going.
  4. Feb 26, 2009 #3
    Ok so that is 21.94 m/s right? I don't know what to do with this info! I am so lost!
  5. Feb 26, 2009 #4


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    The snow is falling vertically at 6.9m/s.

    As you look out the window it is also moving horizontally at 21.94m/s

    Let's see. Vertically ... horizontally ... hmmm. Think there might be an angle in there somewhere?
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