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Linear Momentum Conservation

  1. Oct 14, 2008 #1
    1. The problem statement, all variables and given/known data
    A rocket of total mass 3180 kg is travelling in outer space with a velocity of 115 m/s toward the sun. It wishes to alter its course by 35.0 degrees, and can do this by firing its rockets briefly in a direction perpendicular to its original motion. If the rocket gases are expelled at a speed of 1750 m/s, how much mass must be expelled?
    Answer is 140kg

    2. Relevant equations

    P=mv

    3. The attempt at a solution

    http://uploader.neoextreme.com/files/1274/physicsproblem13ch7.jpg [Broken]
     
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Oct 15, 2008 #2

    tiny-tim

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    Last edited by a moderator: Apr 23, 2017
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