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Homework Help: Can someone help me with relative motion

  1. Oct 3, 2008 #1
    1. The problem statement, all variables and given/known data
    if a car 1 is traveling north at 13m/s
    and another car (2) is driving 20 degrees north of west at 7.0m/s

    1.What is the velocity of car 1 relative to car 2
    2.What is the velocity of car 2 relative to car 1?

    i don't understand how to solve this? could someone help, are the relative velocities different?

    2. Relevant equations

    3. The attempt at a solution

    My attempt...

    components of car 2
    sin 20 = op/hyp = op/7
    y=2.39 North

    x=6.58 West

    then i dont know what to do
    Last edited: Oct 3, 2008
  2. jcsd
  3. Oct 3, 2008 #2


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    Staff Emeritus
    Science Advisor
    Gold Member

    Of course we can help you solve the question, but we won't do it for you. You need to show some effort in solving the question yourself before we can help you.
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