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Homework Help: Maximum Hieght

  1. Oct 21, 2007 #1
    1. The problem statement, all variables and given/known data
    A projectile with mass m is fired upward with an initial speed v0. If the air drag varies with the square of speed F(v)=-kmv2 show that the projectile reaches a height of

    2. Relevant equations
    F0+F(v) = mv(dv/dx)

    3. The attempt at a solution
    I am a little confused on how to get started and tackle this problem! Any pointers? Thanks for the help!
  2. jcsd
  3. Oct 21, 2007 #2
    Were you able to get the differential equation?
  4. Oct 23, 2007 #3
    I was not able to get the diff. eq. I have not had any diff. eq. classes yet, so I am teaching myself as I go along in my mechanics course. Would it be ma=-mg-c1v?
  5. Oct 23, 2007 #4


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    Staff Emeritus
    Science Advisor
    Gold Member

    What is "c1v"?
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