give reaso⁾n why friction is said to be a necessary evil
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give reaso⁾n why friction is said to be a necessary evil
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Answer:
friction is a necessary evil because it opposes motion and is always exerted in the direction opposite to motion.
Explanation:
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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 .