Final answer:
The proper speed for coupling cars is around 2-3 miles per hour or about 3-5 feet per second. Slower speeds help prevent damage and ensure a safer and smoother process.
Step-by-step explanation:
The proper speed at which cars should be brought together when coupling depends on various factors such as the type of coupling mechanism and the weight of the vehicles. However, in general, a recommended speed for coupling cars is around 2-3 miles per hour, or about 3-5 feet per second.
This slower speed helps to prevent damage to the vehicles and ensures a safer and smoother coupling process. Slower speeds also allow drivers to have better control and maneuverability during the coupling.
It's important to note that the specific speed may vary based on different factors, so it's always best to consult the manufacturer's recommendations or guidelines for the specific coupling mechanism being used.