If both particles have the SAME electrical charge, then they repel.
If they have DIFFERENT electrical charge, then they attract.
Protons have + charge .
Electrons have - charge .
So two protons (A) or two electrons (D) push apart.
One proton and one electron (C) pull together.
To solve this problem divide 60 by 4.6
The answer to this problem is 13 seconds.
Ur answer is 3 and i'm sure of it