Question

can somebody give me four examples for why "friction is a nessary evil".

Answer 1

Friction is advantageous in the following way:

1. To walk, To drive a car, roll.

2. To control speed of vehicles, bouncing balls.

3. To operate screws, blots, harnesses, writing.

4. To have a nature free from non stop violent storms, tsunamis, noise and chaos.

These are some of the points that make friction a necessary evil.