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Homework Help: Rectilinear Motion of Particle

  1. Jan 28, 2009 #1
    1. The problem statement, all variables and given/known data

    3. The acceleration of a particle is directly proportional to the time t. At t=0, the velocity of a particle = -12 m/s. Knowing that v=0 and x = 15 when t=4s, write the equation of the motion.

    Here is my solution, could Somebody check it?
    View attachment zadanie3.pdf

    Text is in Polish, sorry for that :smile:
     
  2. jcsd
  3. Jan 28, 2009 #2

    turin

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    I'm still waiting for the attachment approval. In the meantime, dzien dobry.
     
  4. Jan 29, 2009 #3
    Dzien dobry :)) Attachment approval? So you cannot look into it?
     
  5. Jan 29, 2009 #4

    turin

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    You have explained the problem well enough, and I believe I can solve it, but it is against forum rules for me to provide any help until I see your attempt at a solution. Is there a reason why you need to put it into pdf format? I understand that using the tex feature on this forum is a bit frustrating, but you can just try to write out your solution in plane text here, and I will try to follow it.
     
  6. Jan 30, 2009 #5

    turin

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    When you integrated v to find x as a function of t, you did something wrong. I advise you to put limits on your integration, and put explicitly what is the differential quantity over which you're integrating.
     
  7. Jul 6, 2009 #6
    do you have any other simplier sulotion for rectilinear motion??
     
  8. Jul 6, 2009 #7

    turin

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    adashiu's approach is the simplest approach that I'm aware of. In fact, off the top of my head, I can't think of another way to do it.
     
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