Question

FIND THE SITUATIONS IN WHICH FRICTION IS NON BENIFICIAL

Answer 1

Answer:

~ Friction produces a lot of heat in various parts of the machinery and this leads to wastage of energy as heat.

~ Opposes motion, hence more energy is needed to overcome friction.

~ Forest fires are caused due to friction between branches of trees.

~ Lot of effort and money goes in to techniques like oiling and greasing to overcome friction.

~ Cause usual wear and tear of objects.