Question

'friction force is known as a necessay evil'. comment on the statement

Answer 1

Answer:

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

Answer 2

Frictional force causes a lot of losses in general upkeep and wear and tear of machinary .Hence it is considered as a evil. But almost all crucial tasks cannot be considered out without the presence of friction....Hence it is considered as necessary evil