Question

what are the disadvantages of friction ? explain with example​

Answer 1

Answer:

Yes there are a lot of disadvantages of friction.

Explanation:

Few disadvantages of friction are:-

1. It always opposes motion of an object
2. Machines might stop working properly
3. It might heat up the machine

Answer 2

Answer: wastage of energy, corrosion

Explanation:

Friction limits the actual and Ideal motion of a body( particles also) as they're known as the force which opposes the relative motion between the two bodies. Friction in real cases causes heat when two physically in-contact bodies are in motion ( mostly in opposite directions or same but with different accelerations).. thereby requiring more energy than usual.

It also causes wear and tear of mechanical parts. Corrosion is also a case of friction.