Why is friction a necessary evil??
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the friction is a necessary evil because exceed friction can cause disadvantages to us.
We cannot walk if there is excess friction
Excess friction causes wear and tear of the objects
We cannot walk if there is excess friction
Excess friction causes wear and tear of the objects
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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. ... Hence it is considered as a necessary evil
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