Friction is the force that opposes the motion of an object when it comes into contact with another object or surface. It occurs due to the roughness and interlocking of microscopic surfaces.
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Static Friction: This refers to the frictional force that prevents an object from moving when a force is applied to it.
Kinetic Friction: This refers to the frictional force that acts on an object in motion, opposing its motion.
Coefficient of Friction: This is a value that represents the amount of friction between two surfaces and determines how much force is needed to overcome it.