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Find the electric force on the proton

  1. Dec 4, 2012 #1
    1. The problem statement, all variables and given/known data
    physicsproton.jpg


    2. Relevant equations
    magnitude of the force is k(e^2)/(r^2)
    k = 9 * 10^9 N*m^2/C^2
    e = 1.6 * 10^-19C
    3. The attempt at a solution
    ke^2/(r^2) = (9*10^9 N * m^2/C^2)(1.6*10^-19C)^2/(.39^2 + .40^2)*10^-18m^2 = 7.38 *10^-10 N
     
  2. jcsd
  3. Dec 4, 2012 #2

    SammyS

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    Now find the two components .
     
  4. Dec 4, 2012 #3
    ok this is what I got resultant y is y/sqrt(a^2+y^2)

    then resultant x is x/sqrt(a^2+y^2)

    this is what was stated in the book
     
  5. Dec 4, 2012 #4

    SammyS

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    Did you get a numerical answer?
     
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