Question

What are the advantages of friction

Answer 1

Brakes on a car use friction to stop the vehicles. Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications to prevent slipping or sliding. Friction between the sole of a shoe and the surface of the ground prevents us from slipping.

Answer 2

advantages of friction:
1)we can walk or run because of friction between feet and floor.to walk gently on road ,the sole of our shoes is grooved ,because to produce shoes a better grip on the floor .the tyres of cars and trucks are threaded.
2)gymnasts apply some  coarse substance on their hands to increase the friction for better grip.
3)fixing a nail on a wall or in a wooden block is possible because of friction
4)lightening a match stick and sewing of clothes are possible with friction so friction performs a major role in every day life