According to Coulomb's Law, two like electrical charges repel each other with a force that is inversely

Question:

According to Coulomb's Law, two like electrical charges repel each other with a force that is inversely proportional to the square of the distance between them. If the force of repulsion is 10 dynes (1 dyne = 10-5 Newton) when they are 2 centimeters apart, find the work done in bringing the charges from 5 centime-ten apart to 1 centimeter apart