Friction force is known as a necessary evil. Comment on this statement
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friction is friend as well as evil because it helps us to hold things , catch something and also if the friction is increased then it may damage machine
it produces sound which harms new borns and old citizens
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Answer:
Frictional force cause a lot of losses in general upkeep and wear and tear machinery.Hence, it is considered evil.But almost all crucial tasks cannot be carried out without the presence of friction.Basic activities like walking and writing on a surface are possible due to friction .Hence it is considered as a necessary evil.
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