When two surfaces move or slide over each other, they experience:
When two surfaces move or slide over each other, they experience:
جب دو سطحیں حرکت کرتی ہیں یا ایک دوسرے کے اوپر پھسلتی ہیں، تو وہ کس کا تجربہ کرتے ہیں
Explanation
When two surfaces slide over one another the tiny bumps push on each other.
Friction causes a force on a surface that is in the opposite direction to its motion.
Friction can be reduced by the application of lubricants
ND20-1-2023