Traction is a term used to describe the force exerted by pulling. It is a type of force that is generated when two objects are in contact with each other and one object is pulled away from the other. This force is often used in physics to describe the motion of objects, such as when a car is accelerating or when a person is walking. It can also be used to describe the force of gravity on an object, such as when a person is standing on the ground.