Question

why is friction called a necessary evil? ​

Answer 1

Answer:

hlo✨

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 ..

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Answer 2

Explanation:HEYA!!UR ANSWER IS THIS ⤵️

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 .

SOME MORE INFORMATION ABOUT IT FOR CLEAR UNDERSTANDING :-)

Friction is a force exerted by a surface against the motion of a body across its surface. Frictional forces are the reason why your car comes to a standstill if you don’t accelerate. We see examples all around us where frictional forces act. It is something that we cannot live with and something we cannot live without. In this article, we will explore friction, how it helps us, and how it harms us. Let’s start with its advantages.

We can only understand the importance of frictional force if it goes away. So let’s explore a world without frictional force. Without this force, you would not be able to walk at all. With your first step out of the bed, you’d slip and fall. Imagine a world where someone has put oil all over a floor. A world without frictional force is much worse than this. Let alone walking, you wouldn’t be able to use your car or bike since the wheel that helps you move around to do so by using frictional force. The friction between the road and the wheel causes the movement of the vehicle and without frictional forces, you’d just stay in one place and spin the wheels. Imagine that you eventually make it your classroom despite the absence of frictional force after a lot of slipping and falling down. In the classroom, the situation would be even worse. You wouldn’t be able to lift your books out of your bag because they’d keep slipping through your fingers. Pen and pencil rely on the frictional force acting between the tip of the pen or pencil and the page to write.

HOPE ITS HELPFUL