When traveling at 20 mph, what is the maximum stopping distance for a combination weighing 3,000 pounds or less?

In determining the maximum stopping distance for a combination weighing 3,000 pounds or less while traveling at 20 mph, it's essential to consider the factors that influence stopping distance, such as the speed of the vehicle, reaction time, and braking capability.

The figure of 40 feet is aligned with standard traffic safety guidelines, which suggest that at 20 mph, the average stopping distance can be approximately 40 feet for well-maintained vehicles. This calculation includes both the distance traveled during the driver's reaction time and the actual braking distance.

At this speed, a combination vehicle that is well-equipped and in good condition should be able to stop within this distance, assuming ideal conditions such as dry pavement and adequate tire traction. This makes the choice of 40 feet the most accurate option among the provided answers, reflecting standard industry safety practices for stopping distances at lower speeds.