A force is a push or pull acting upon an object as a result of its interaction with another object. There are a variety of types of forces. It is classified into two broad category on the basis of whether the force resulted from the contact or non-contact of the two interacting objects.
CONDACT FORCE;
1)Frictional Force
2)Tensional Force
3)Normal Force
4)Air resistance force
5)Applied Force
6)Spring Force
NON CONDACT FORCE(Action-at -a-distance force);
1)Gravitational Force
2)Electrical Force
3)Magnetic Force