Question

give two examples where friction is an advantage​

Answer 1

Answer:

Advantages of Friction:

• Friction is responsible for many types of motion.
• It helps us walk on the ground.
• 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

Answer 2

Friction :-

Friction is the resistance of motion when one object rubs against another. Anytime two objects rub against each other, they cause friction. Friction works against the motion and acts in the opposite direction.

Advantages of friction :-

• 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 :-

• 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.

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