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Homework Help: Speed of a proton question - Need Help!~

  1. Apr 16, 2012 #1
    1. The problem statement, all variables and given/known data

    Ok here is the question: Image below:


    Now the correct answer is: 1.63 x 10^7 m/s

    I am not getting that. Look at the image below to see what I am getting, with my work.


    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Apr 17, 2012 #2


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    Homework Helper

    So will the electron be speeding up or slowing down after it enters the Electric field.

    Note: the problem is about an electron, but your title mentions "a proton question"?
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