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Projectile motion with air resistance

  1. May 21, 2012 #1
    Hey guys, Im in the process of writing a program for pmotion with air resistance that is proportional to the velocity squared and ive hit a stump. In my program it simulates the path of the ball by changing the time and putting it into the equation and plotting it on a graph. My problem is all the equations i have found using air resistance has mass. I know this question is not 100% physics but if anyone could help It would be greatly appreciated

    The program allows only the input of the horizontal velocity component and the vertical velocity component

    Thanks
     
    Last edited: May 21, 2012
  2. jcsd
  3. May 21, 2012 #2

    K^2

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    Science Advisor

    You have Fd=-kv², and you have ƩF=ma. All that really affects the motion here is the ratio k/m. Call it some constant c=k/m, and then you don't have to worry about the mass.

    By the way, in 1D, you can solve for v(t) directly.
     
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