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: Electric Potential- Two Charges

  1. Oct 26, 2014 #1
    1. The problem statement, all variables and given/known data
    Two identical particles, each with a mass of 2.0 mg and a charge of 25 nC, are releasedsimultaneously from rest when the two are 4.0 cm apart. What is the speed of either particle at the instant when the two are separated by 10 cm?

    2. Relevant equations

    3. The attempt at a solution
    I have calculated the PE at 1.40e-4 V, but don't know where to go from there.
  2. jcsd
  3. Oct 26, 2014 #2


    User Avatar
    Science Advisor
    Homework Helper
    2017 Award

    Hi chap, and welcome to PF :)

    What's the PE by the time they are 10 cm apart ?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted