Question

two advantage and disadvantag of friction in short​

Answer 1

Answer:

Disadvantages of friction:

It always resists the motion, so extra energy is required to overcome it.

It causes wear and tear of machines.

It decreases the life expectancy of moving parts of vehicles.

Since friction is very useful in some cases while harmful in some cases, friction is called a necessary evil.

Answer 2

Explanation:

Advantage of friction :

1) Friction is responsible for many types of motion.

2) It helps us walk on the ground.

3) It helps in the generation of heat when we rub our hands.

Disadvantage of friction :

1) Friction produces unnecessary heat leading to the wastage of energy.

2) Forest fires are caused due to the friction between tree branches.

3) It causes wear and tear of machines.