Question

Friction is necessary evil.. Explain?

Answer 1

⏩⏩⏩Yes friction is necessary and evil both because in some cases fiction is useful and in some cases it is not useful...for example without friction we are not able to walk write and etc... friction is evil because it can cause harm to machine and it produces high amount of heat...

hope it helps ☺

Answer 2

friction is necessary f because without friction we can't do anything for ex- to drive a car also we need friction if friction increases there is between the tyres and road if friction will not be there then the car will tend to move round and round on it's place . Friction can be evil in usually machines and then we use some methods like polishing, lubrication etc.