Motion of Charged Particles in Electric Fields

AI Thread Summary
The discussion centers on calculating the smallest distance between two electrons fired at each other at a speed of 3.5 x 10^6 m/s. The user attempts to equate kinetic energy (Ek) and electric potential energy (Ee) but is struggling to arrive at the correct answer. Clarification is sought on the physical representation of Ek, including the variables mass (m) and velocity (v). Participants are encouraged to provide detailed solutions to identify potential errors in the user's calculations. The conversation emphasizes the importance of understanding the relationship between kinetic and electric potential energy in this context.
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Homework Statement


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.


Homework Equations


Ek= 1/2mv^2
Ee= kq1q2/r


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?
 
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What does Ek represent physically? (what is m? v?)
 
Please show us your work so we can point out where the error is.
 
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