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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

    LowlyPion

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    Homework Helper

    What is the equation for relating Work and equipotential surfaces?

    What changes in kinetic energy have occurred?
     
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