Question

why friction is a necessary evil ????

Answer 1

it is a general misconception that friction always opposes motion between two bodies in contact ,but actually it opposes relative motion between two bodies in contact .In many cases friction is found as the cause of motion .without friction it is impossible to imagine this world.Friction is evil in mechanical machines causing wear and tear of parts.Friction causes wear and tear of tyre but in turn is impossible to rotate tyre…and many more.

Answer 2

Hey friend hope this will help you...

Really in our life friction is very necessary

because without friction we can't walk ..


friction is that thing which resist layer it motion

so that we able to force on floor and able to

walk..