Push and pull of objects interacting with each other is considered as force.
It is an external agent which is capable of changing the state of rest and state of motion of a particular body.
Force is a vector quantity which has both magnitude and direction. The SI unit of force is NEWTON(N).
Effect of force
Change in velocity
Change in direction
Types of forces
Contact force
Non contact force
Contact force is act on the body by direct contact between them and non contact force is such type of force which acts on the body without any contact.
Mechanical force and frictional force are contact forces. gravitational force, magnetic force non contact forces