A frictionless table refers to a surface with no resistance or drag present when objects slide across it horizontally. This absence of friction allows for smooth motion without any loss of energy due to rubbing against surfaces.
Static friction refers to the resistance encountered when attempting to move an object at rest. It acts in the opposite direction of applied force until the force overcomes it, allowing the object to start moving.
Kinetic friction refers to the resistance encountered when objects slide or move against each other. It acts in the opposite direction of motion and is usually smaller than static friction.
The coefficient of friction is a dimensionless number that represents how rough or smooth two surfaces are in contact with each other. It determines how much frictional force will be present between them.