Question

What do you mean by frictional force?

Answer 1

Friction is the resistance to motion of one object moving relative to another.
It is not a fundamental force, like gravity or electromagnetism.
Friction is a force that holds back the movement of a sliding object.
That's it.Friction is just that simple.
You will find friction everywhere that objects come into contact with each other.
The force acts in the opposite direction to the way an object wants to slide.
Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces