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!

Point mass potential

  1. Nov 27, 2006 #1
    If I have a point mass that experiences a force

    [tex]\vec{F}(\vec{r}) = - \frac{k}{r^2} \vec{e_r} -mg \vec{e_z}[/tex]

    is it correct that the potential is

    [tex]V = - \frac{k}{r} + mgz[/tex]

    ??
     
  2. jcsd
  3. Nov 27, 2006 #2

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    By the unit vectors used, apparently one uses the cylindric coordinates. Did you check that [itex] \vec{F}=-\nabla U [/itex] using cylindric coordinates ?

    Daniel.
     
  4. Nov 27, 2006 #3
    Yeah that's correct. Can I interpret this as a particle next to a vertical cable or something?
     
  5. Nov 27, 2006 #4

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    I ain't got a clue.

    Daniel.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Point mass potential
  1. Point charge potential (Replies: 1)

  2. Potential at a point (Replies: 1)

  3. Point mass inside hoop (Replies: 2)

Loading...