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Force on protons

  • #1

Homework Statement


The problem states that two protons are aimed at each other with a certain velocity v. It asks what is the maximum electrical force they will exert on each other.
The velocity is given at 1000km/s. And that is everything given.


Homework Equations


KE = 1/2mv^2
F = q*q/(4*pi*e*r^2)

The Attempt at a Solution


I am stuck on the approach. I have managed to find the kinetic energy of the protons but that is it. I don't know where to go from here . I think I should use Coulomb's Law, but I need to find the radius for that. Any suggestions?
 

Answers and Replies

  • #2
Doc Al
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Hint: What can you say about the KE of the protons when they reach the minimum separation distance?
 
  • #3
Great Help! Thank you very much, problem Solved.
 
  • #4
Redbelly98
Staff Emeritus
Science Advisor
Homework Helper
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Just on a hunch, I'll ask if the total kinetic energy of the two protons was included in the problem solution.
 

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