Types of Force

There are two types of force :-

1. Contact force
2. Non-contact force 

Contact force:- A contact force is a force that acts at the point of contact betweenumber two objects, in contrast to the body force.
       Contact force is any force that requireshe contact to be enforcedone.  Contact forces are also direct forces. Contact forces are present every where and are responsible for most visibless interaction between microscopic collection of matter.

Example:-

1. Pushing a car up the hill.
2. Pushing a desk across a room.

         In the first case, the force is continuously applied by the person on the car, while in the second case the force is delivered in a short impulse.

Non-Contact force:- The force which acts on an object without coming physically in contact with it, is called non-contact force. The most familiar example of a non-contact force is weight. In contrast a contact force is a force applied to a body by another body that is in contact with it. However it is to be noted that the origin of all contact forces can be traced to non-contact forces.