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Energy in an explosion

  1. Apr 9, 2008 #1
    A fuel tank explodes, ripping the
    container into two pieces of masses 20kg and
    and 15kg sending them 6.6m and 7.30000019m high,
    respectively. What was the energy released by the
    explosion if all energy becomes the KE of the

    Shouldn't the sum of the PE of both fragments equal the energy released?


    Thank you
  2. jcsd
  3. Apr 9, 2008 #2

    Doc Al

    User Avatar

    Staff: Mentor

    If they go straight up, yes. (So you can assume that at their highest point they have only potential energy, but no kinetic energy.)
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