Question

Frictional force is independent of area of contact but still breaks of very small contact are not preferred. Why?

Answer 1

Frictional forces said to be a contact force because it acts upon two surfaces which are in contact with each other like when a car is moving on a road then it acts between the types of the car and the road because the tires and the road surface are in contact with each other.

Answer 2

Answer:

Frictional force is independent of area of contact but still breaks of very small contact are not preferred because friction causes wear and year.

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