Question

explain any three disadvantages of friction
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Answer 1

Answer:

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

2.The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects

Answer 2

Disadvantages of Friction are as below

* 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.