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2D Kinematics

  1. Sep 18, 2006 #1
    These two problems are giving me some guff. Any ideas on how to solve?

    Two cars approach an intersection of perpendicular streets. Car A is moving north at 10.5 meters per second, and Car B is moving west at 17.1 meters per second. What is the velocity of Car B relative to Car A? (In other words, what is the velocity of Car B in the reference frame of Car A?)
    Answer 1 -m/s
    Answer 2 -° (referenced to east being 0°, all angles between 0° and 360°)

    Two cars approach an intersection of perpendicular streets. Car A is moving north at 10.5 meters per second, and Car B is moving west at 17.1 meters per second. What is the velocity of Car B relative to Car A? (In other words, what is the velocity of Car B in the reference frame of Car A?)
    Answer 1 m/s
    Answer 2 ° (referenced to east being 0°, all angles between 0° and 360°)
     
  2. jcsd
  3. Sep 18, 2006 #2
    first, if you where in car A, how would car B appear to you in frame of reference?

    so think of it this way. the cars are moving as discribed; however, there is no road. instead, they are in space with nothing else around.
     
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