Why friction is not necessary. Write any three reasons.
Answers
Answer:
Frictional force causes a lot of losses in general upkeep and wear and tear of machinery. Hence it is considered as a evil. But almost all crucial tasks cannot be carried out without the presence of friction
Explanation:
Why is friction called a necessary?
Friction is called a necessary evil because it wears out the materials be it screws, ball bearing or soles of shoes. This wear and tear increases the maintenance cost of the things. But, at the same time life would have been a trouble without friction, as the energy could not have been transferred.
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Answer:
Frictional force causes a lot of losses in general upkeep and wear and tear of machinery. Hence it is considered as a evil. But almost all crucial tasks cannot be carried out without the presence of friction.
Explanation:
three reason's in attachment
