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Rocket Science

  1. Nov 7, 2004 #1
    [SOLVED] Rocket Science

    "Calculate the speed acquired by a rocket whose mass varies as it burns up fuel."

    Is there any way I could make up a semi-realistic problem relating to the above quote and solve it with logarithms?
     
  2. jcsd
  3. Nov 7, 2004 #2
    [tex]F=ma[/tex]
    [tex]F=m\frac {dv}{dt}[/tex]
    [tex]\frac {F}{m} = \frac {dv}{dt}[/tex]
    [tex]\int \frac {F}{m}dt = \int \frac {dv}{dt}[/tex]
    [tex]v=\int \frac {F(t)}{m(t)}dt[/tex]
    Not sure if that answers your question
     
  4. Nov 7, 2004 #3
    I'm only in grade 11 and haven't done any calculus. Is there any way to make any sort of problem for this that only includes Logarithms?
     
  5. Nov 7, 2004 #4
    Isn't force the derivative of momentum such that you would have to include the [itex]v\frac{dm}{dt}[/itex] term as well?
     
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