What is one reason empty trucks perform poorly in braking?

Empty trucks perform poorly in braking primarily because they require greater stopping distance due to less traction. When a truck is empty, it has a reduced load which leads to a decrease in the weight pressing down on the tires. This reduction in weight significantly affects the friction between the tires and the road surface. With less traction, the braking system does not have as much grip to effectively slow down the vehicle, resulting in an increased stopping distance.

Moreover, when trucks are loaded, the weight assists in creating that necessary friction during braking. In contrast, an empty truck can skid or slide more easily on slick or uneven surfaces, further complicating the stopping process. Understanding this aspect is crucial for truck drivers, as it directly impacts safety and control while driving.