Question

Mention any
any two advantage and disadvantage
of friction
​

Answer 1

$\large\mathbb{\underline\pink{ANSWER}}$

Advantages of Friction:

• Friction is responsible for many types of motion
• It helps us walk on the ground
• Brakes in a car make use of friction to stop the car
• Asteroids are burnt in the atmosphere before reaching Earth due to friction.
• It helps in the generation of heat when we rub our hands.

Disadvantages of Friction:

• Friction produces unnecessary heat leading to the wastage of energy.
• The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects.
• Forest fires are caused due to the friction between tree branches.
• A lot of money goes into preventing friction and the usual wear and tear caused by it by using techniques like greasing and oiling.

MARK AS BRAINLIEST

Answer 2

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.

Advantages of friction:  

• Friction enables us to walk freely.
• It helps to support ladder against wall.
• It becomes possible to transfer one form of energy to another.
• Objects can be piled up without slipping.
• Breaks of vehicles work due to friction.