Answer :

Force is a push or pull acting on an object .
There are two types of forces :
1. Contact Force
2. Non contact force or force at a distance.

Contact Force : 
A force which arises due to physical contact between two interacting objects.
for example:
1. Muscular Force, frictional force, Normal Force and Tension force.

Non Contact forces :
 A force which arises without interaction between two bodies.
example: Magnetic force
gravitational force
electrostatic force.
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applied force,normal force ,spring force,contact force

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