How does Friction produce Static electricity?

Static electricity is the result of an imbalance between negative and positive charges in an object. Rubbing certain materials against one another can transfer negative charges, or electrons. For example, if you rub your shoe on the carpet, your body collects extra electrons from the rug. The rubbing of two objects together produces static electricity, also known as triboelectricity, by bending the tiny protrusions on the surface of materials

Rubbing together of two objects, causes an imbalance of electrons by transferring electrons from one object to another. If two objects both have a negative charge, then they will repel each other. A static force refers to a constant force applied to a stationary object. A static force is too weak to move an object because it is being countered by equally strong opposite forces. The most common example of a static force is static friction on a stationary object

Static electricity is a buildup of electric charges on objects. Charges build up when negative electrons are transferred from one object to another. One way electric charges can build up is through friction between materials that differ in their ability to give up or accept electrons.