Question

How does normal force effect the friction ​

Answer 1

Friction is proportional to the force with which an object pushes against the surface you're trying to slide it along.In other words, the normal force is the force pushing the two surfaces together, and the stronger the normal force, the stronger the force due to friction.

Answer 2

Answer:

Frictional force = Coefficient of friction × Normal Force

With increase in normal force friction also increases