Asked by Nonkumbulo

Two identical point charges repel each other with a force of 4N. When the charges are moved 5mm further apart, the resultant force is reduced to 1N.
How far apart were the charges originally?
Answered by bobpursley
moving .005m force is 1/4 original. sounds like the distance was doubled, or original distance was .005m Remember force is proportional to 1/d^2