What can result from a shift in a truck's center of gravity?

A shift in a truck's center of gravity can significantly impact the vehicle's stability and handling. When the center of gravity moves higher or shifts laterally, it can lead to an increased risk of tipping or rolling over, especially during sharp turns or sudden maneuvers. A higher center of gravity makes a truck more top-heavy, which undermines its stability.

Moreover, if the load is not evenly distributed or if it shifts while in motion, it can lead to a loss of control, making the truck difficult to steer and maneuver safely. This scenario is particularly dangerous for heavy trucks, which rely on a low center of gravity for stability. Therefore, the relationship between the center of gravity and vehicle stability is critical in preventing rollovers and maintaining control during operation.

In contrast, the other options suggest improvements in performance metrics like fuel efficiency, handling in turns, or braking, which do not accurately reflect the consequences of a shift in the truck's center of gravity. Understanding this aspect is crucial for safe driving practices in trucking.