When a truck is empty, what is a necessary adjustment for braking?

Answer: A — longer stopping distance

When a truck is empty, it indeed requires a longer stopping distance. This is primarily due to the fact that an empty truck has less weight, resulting in reduced traction and braking force. When a truck is fully loaded, the weight helps maintain better contact with the road surface, allowing the brakes to be more effective. Conversely, an empty truck can slide more easily, particularly on slick or wet surfaces, which can lead to increased stopping distances. Additionally, without the load, the truck's braking system must work harder to decelerate the vehicle, especially at higher speeds. Drivers should be aware of these dynamics and adjust their driving behavior accordingly, increasing their following distance and anticipating stops well in advance to ensure safety.