Citation:
Static friction is the force that prevents two surfaces from sliding past each other when they are not moving relative to each other. It acts parallel to the contact surface and opposes any applied force trying to initiate motion.
The force that opposes motion between two surfaces when they are sliding past each other.
A value that represents how rough or smooth two surfaces are in contact with each other, affecting the amount of friction between them.
The force exerted by a surface perpendicular to another object pressing against it, which affects the magnitude of friction.