What increases the effect of centrifugal force on the vehicle when driving round bends?

The selected combination of higher speed and smaller radius of a bend is correct because both factors significantly impact the centrifugal force experienced by a vehicle when navigating curves.

When a vehicle travels at higher speeds, the force pushing it outward while turning increases. Similarly, a smaller radius of a bend intensifies this effect because the vehicle has to make a sharper turn, leading to greater centrifugal force.

According to German traffic regulations, understanding the dynamics of vehicle handling during turns is crucial for safety. These concepts highlight the importance of adjusting speed and choosing the appropriate driving line to maintain control and reduce the risk of skidding or losing control, especially on curves.

Higher tire pressure does not contribute to increasing centrifugal force in this context. Instead, proper tire maintenance is important for overall vehicle stability and handling when cornering.