Final answer:
The distance allowed when a vehicle is towing another can differ by location and is governed by legal requirements. It's important to check local regulations for the precise distance permitted.
Step-by-step explanation:
When a vehicle is towing another, the distance between the two must not be greater than what is legally allowed, which varies depending on the jurisdiction. This question relates to the dynamics of vehicles and the interaction of forces between them, such as the tension in a towing cable and the force of the engine pulling the trailer. While the given reference info doesn't directly answer the student's question, it suggests various distances associated with cars that can be related to safety and physics.