P23_041 - 41. We take the positive direction to be to the...

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41. We take the positive direction to be to the right in the fgure. The acceleration oF the proton is a p = eE/m p and the acceleration oF the electron is a e = eE/m e ,where E is the magnitude oF the electric feld, m p is the mass oF the proton, and m e is the mass oF the electron. We take the origin to be at the initial position oF the proton. Then, the coordinate oF the proton at time t is x = 1 2 a p t 2 and the coordinate oF the electron is
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