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Friction is necessary : If there is no friction between any two surfaces in contact, then the present day civilization will be no more- as we cannot even walk properly on the earth. There will be no fabrics and garments, no construction of buildings and no furniture, even no cooking and no vehicles. So friction is necessary. But too much friction causes a heavy loss of energy, wear and tear of machinery. Thus, the efficiency of machines will decrease tremendously. So, it is rightly said that friction is a necessary evil.

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โˆ™ 2008-08-15 11:46:30
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Q: What is meant by the phrase friction is a necessary evil?
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Why is friction called necessary evil?

Friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.


Why is friction called a necessary evil?

friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.


Friction a necessary evil?

Friction is a necessary evil because:- a) It can't be completely avoided b) It is actually useful in many cases


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Friction is not always evil; it is quite necessary for many things to work. But sometimes it can be a nuisance; specifically, friction tends to waste energy.


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Yes necessary evil. If friction is totally absent then no wheel could roll on the road. No chance of walking on the floor. We cannot hold even the pen. Same time too much of friction would bring a terrible loss of energy.


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because we cant walk , hold articles , we cant write and the construction of house is impossible. but there are some disadvantages in friction.


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