Here's why:
* Friction is a contact force: It arises when two surfaces rub against each other.
* It opposes relative motion: Friction always acts in the opposite direction of the object's movement or intended movement.
* Types of friction: There are different types of friction, including:
* Static friction: This prevents an object from starting to move.
* Kinetic friction: This acts on a moving object, slowing it down.
Let me know if you'd like to know more about friction!
