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Homework Help: Numerical Methods/Diff Eq

  1. Aug 20, 2009 #1
    Numerical Methods/Diff Eq :)

    2. Problem


    Clarified: Solving for v(t)

    2. Relevant equations

    equation (1)

    3. The attempt at a solution

    I know the two parts of the hint are important, and tried moving the dt over to the other side and integrating, but I can't seem to isolate the velocity. I think I have to do a derivative before integrating, but I'm not sure how?

    Thanks guys ;)
  2. jcsd
  3. Aug 20, 2009 #2


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    Science Advisor
    Homework Helper

    Re: Numerical Methods/Diff Eq :)

    Move the g-(c/m)v over to the dv side as well and integrate both sides. The equation is 'separable'. The hint is indicating that you then use the substitution y=g-(c/m)v on the dv side.
  4. Aug 21, 2009 #3
    Re: Numerical Methods/Diff Eq :)

    Dick your answer is incredible, I've also been struggling with differential equations but now it makes a whole lot more sense haha

    PS, mr. OP, are there any initial conditions given?
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