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Homework Help: Motion of Charged Particles in Electric Fields

  1. Apr 12, 2007 #1
    1. The problem statement, all variables and given/known data
    3. Two electrons are fired at 3.5 x 10^6 m/s directly at each other.
    a)Calculate the smallest possible between the two electrons.

    2. Relevant equations
    Ek= 1/2mv^2
    Ee= kq1q2/r

    3. The attempt at a solution
    I made the Ek and the Ee equal, but i keep on getting the wrong answer. Can someone please help me?
  2. jcsd
  3. Apr 12, 2007 #2


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    What does Ek represent physically? (what is m? v?)
  4. Apr 12, 2007 #3


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    Please show us your work so we can point out where the error is.
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