Friction- an evil master and good servant to man
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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. ... Basic activities like walking and writing on a surface are possible due to friction. Hence it is considered as a good servant to man .
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in this question you need to explain the advantages and disadvantages of friction .
advantages : disadvantages
it helps to write wear and tear of sole of shoes
it helps to move damage of tyres
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