What is a good examples of friction?

Answer 1

Paradoxically, friction is one of those things that's so prevalent, so ubiquitous, that it's hard to think of any. But here are a few that come immediately to mind:

1. Air resistance: friction between a moving body and molecules of air.

2. Rubbing: Rubbing your hands together to create warmth.

3. Tire traction: the friction between the tires and the surface of the road that allows your car to accelerate, slow down, and negotiate turns and corners.

4. Static friction: the friction between two surfaces that prevents items on less-than-perfectly-level tables and shelves from sliding off. Also, the friction between the soles of your shoes and the ground that permits you to walk without busting your butt. (Similar to 3 and 4.)

Answer 2

Simple machanics of

Brakes applied to stop a car causes friction between the disk and the brake pad and the tyre on the road to produce drive and steering needs friction so that grip is achieved