Question

what is normal reaction??

Answer 1

The force exerted by a surface on an object in contact with it which prevents the object from passing through the surface; the force is perpendicular to the surface, and is the only force that the surface exerts on the object in the absence of frictional forces.

Answer 2

heya mate here is your answer for your question

Normal reaction is a subtopic which is explained in physics while explaining Newtons laws of motion

and also it is perpendicular to the surface as well as frictionalal force

you can refer the above pic

it happens only when it is in contact with the surface

normal reaction is also a type of force

surface is the base you took to keep an object and frictional force is the force which opposes the motion

i hope it helped uh !!!

Thanks! !