Question

What is contact and non contact force

Answer 1

the force which is excerted by coming in contact .
for example - a man pushing a box.
and non contact force is excerted without coming in contact.
for example - gravitational force.

Answer 2

Contact forces are those forces that act on bodies when they are in contact 'physically’. Example: Boy pushing a block of wood.

Non contact forces are those forces in which the force acts on the bodies even when they are not in contact. Example: Gravitational and electrostatic forces.

Hope it helps you :)