What is the difference between beneficial friction and harmful friction?
Good and bad doesn't mean good or bad. It means to be good for sports. Just as people walk on shoes and ground friction, that's a good rub. And the common ground block has friction, which is detrimental to the movement.
Good or bad depends on our purpose. Transmitting objects is our main purpose. Just like we do in normal transmission, there will be a loss of electricity in the delivery process, but we have to transmit electricity. We can only try to reduce!
The standard of useful friction and harmful friction is generally considered in terms of real life The friction of a belt is primarily a transfer of goods, which is a useful friction
