1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Differential Equation and Newtons 2. law

  1. Sep 29, 2005 #1
    In a fluid, there's an exponential force F = -b*e^v working against the direction of movement. B is constant, and v is the objects velocity in m/s.

    They want me to use Newtons 2. law to find a differential equation for the movement of an object with mass m. The equation is separable, seperate so v is found on one side of the = and t on the other side.

    Could anyone please point me in the right direction here?
  2. jcsd
  3. Sep 29, 2005 #2
    what's F = ma in terms of a differential equation?

    (i take it that we want it in terms of velocity.)

    after you get that step, you equate it to that resistive force, and ... there ya go.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Differential Equation and Newtons 2. law
  1. Newton 2 law (Replies: 2)

  2. Newtons 2.law help (Replies: 10)

  3. Newton's laws 2 (Replies: 5)