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Kinematics: Net displacement Help Please!

  1. Sep 9, 2007 #1
    A student runs 30m east, 40m north and 50m west. What is the magnitude of the students net displacement? What is the net displacement?

    I can't find an equation to solve this problem. Could someone please give me some guildlines to figure out net displacement of multiple directions?
     
  2. jcsd
  3. Sep 9, 2007 #2

    learningphysics

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    Can you simplify the sum of these 3 vectors to a sum of 2... Hint: what is the net displacement of 30m east and 50m west.
     
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