Question

how friction produces unnecessary heat

Answer 1

Hey friend Here is your answer

You know that friction produces heat. That’s why rubbing your hands together makes them warmer. But do you know why? Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer. Heat from friction can be useful.

Thank You

Answer 2

Friction is the movement opposite of which direction you are trying to move so the molecular movement is moving with which produces unnecessary heat