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Kinetic Energy

  1. Sep 18, 2006 #1
    I don't understand how kinetic energy works: How much kinetic energy does a car have when it moves at 100 km/hr, as compared with when it moves at 50 km/hr? The answer is 4 times as much, but why?
     
  2. jcsd
  3. Sep 18, 2006 #2

    Hootenanny

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    What is the equation for kinetic energy?
     
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