* The force of gravity between two objects that are not massive enough to exert a gravitational pull on each other.
* The force of friction between two objects that are not in contact with each other.
* The force of magnetism between two objects that are not magnetic.
* The force of electricity between two objects that are not charged.
Nonexistent forces are often used in physics to create models of systems that are too complex to be analyzed exactly. For example, a physicist might use a nonexistent force to model the effect of air resistance on a falling object. This allows the physicist to simplify the problem and make it easier to solve.
It is important to remember that nonexistent forces are just that: nonexistent. They do not actually exist in the real world. However, they can be useful tools for physicists and other scientists.
