What is the vector force exerted by Particle B on Particle A?

AI Thread Summary
The discussion revolves around calculating the vector force exerted by charged particle B on particle A after they are separated by a greater distance. Initially, particle A exerts a force of 2.62 micro coulombs on particle B when they are 13.7 mm apart. As particle B moves to a distance of 17.7 mm, the participants clarify that the force should be expressed in Newtons, not coulombs, which are units of charge. To solve the problem, the relevant equation relating electric force to charge and distance is emphasized. The conversation highlights the importance of understanding the correct units and equations in electromagnetism.
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Homework Statement


-A charged particle A exerts a force of 2.62 micro coulombs to the right on charged particle B when the particles are 13.7 mm apart. Particle B moves straight away from A to make the distance between them 17.7 mm. What vector force does it then exert on A?


Homework Equations


This is what I am trying to figure out. I'm sort of new to this whole electromagnetism thing.


The Attempt at a Solution

 
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"A charged particle A exerts a force of 2.62 micro coulombs..."

The units of force are Newtons (typo)?; coulombs are units of charge.

To work thos probelm, use the equation that relates the electric force to charge and charge separation.
 
yeah that was a typo thanks
 

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