Question

what is a normal force?

Answer 1

normal force is a reaction force applied on a body in the opposite direction of the gravitational pull.e.g When an object is kept on a table it exerts a force on table that's mg and as its at rest so acc to third law of motion action=reaction so normal is mg too

Answer 2

$\huge\mathcal{ANSWER:}$

The force that a solid surface exerts on any object in the normal(perpendicular) direction is called the normal force