The correct answer is Tension force. Explanation & Key Takeaways: • A car towing another car with a chain is an example of a Tension force. • The force of tension is defined as the force which is transmitted by rope, string, or wire when pulled by forces acting from opposite sides. • The force of stress is directed over the length of the wire and at the ends pulls energy evenly on the bodies. • Any physical object that is in contact with each other exerts some force. • Cables and ropes can be used to exert forces since they can easily move a force over a given distance (e.g. the length of the rope). Related Concepts: • Frictional Force refers to the force produced by two surfaces that come in contact and slide against each other. • An applied force is a force that a human or some other object applies to an entity. If an individual moves a desk across the room, then an applied force acts on the object. • The Normal force is the force of support exerted on an object which is in contact with another stable object. It always occurs perpendicular to the surface.