Question

friction as a necessary evil

Answer 1

Answer:

Friction is a evil but friend to

1. If there is no friction then we cannot stand

2. If there is no friction then we cannot apply break

3. If there is no friction then we cannot play

4. If there is no friction then everything will be in motion

Explanation:

Answer 2

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 .