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The fulll problem to my momemtum problem .

  1. May 29, 2008 #1

    jamiescience

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    the fulll problem to my momemtum problem.....

    1. The problem statement, all variables and given/known data
    a 1.0*10^4kg spacecraft is traveling through space with a speed of 1200 m/s realtive to earth. a thruster fires for 2.0 min, exerting a continuous force of 25kN on the space craft in a direction opposite the spacecrafts motion . calculate the initial momentum and the fianl momentum kof the spacecraft.


    2. Relevant equations



    3. The attempt at a solution
     
    Last edited: May 29, 2008
    jamiescience, May 29, 2008
  2. jcsd
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  3. May 29, 2008 #2

    uman

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    I have found a clever and elegant solution, but it is too long for this post to contain.
     
    uman, May 29, 2008
  4. May 29, 2008 #3

    uman

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    Note: My response was sarcastic, since when I posted it you hadn't yet included the problem statement! Sorry for any confusion.

    Do you know the formula that defines momentum? That should give you the initial momentum pretty easily. As for the final momentum, there are multiple ways of finding it, but they probably want you to use the fact that impulse is equal to change in momentum.
     
    uman, May 29, 2008
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