1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Work and electric field

  1. Feb 9, 2009 #1
    1. The problem statement, all variables and given/known data

    Equipotential surface A has a potential of 5650V, while equipotential surface B has a potential of 7850V. A particle has a mass of 5.00*10^-2kg and a charge of +4.00*10^-5. The particle has a speed of 2.00 m/s on the surface A. An outside force is applied to the particle and it moves to surface B, arriving there with a speed of 3.00 m/s. How much work is done by the outside force in moving the particle from A to B?

    2. Relevant equations

    3. The attempt at a solution
    Can someone please help me with this problem? I really need help with how to start this problem and what equations to use! Please help.
  2. jcsd
  3. Feb 9, 2009 #2


    User Avatar
    Homework Helper

    What is the equation for relating Work and equipotential surfaces?

    What changes in kinetic energy have occurred?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook