Is the Vehicle Resistance Greater or Smaller on a Downhill Section?
1 Answers
On a downhill section, the vehicle resistance is smaller compared to a flat section. Due to the effect of gravity, the driving resistance on a downhill section is reduced, making it easier for the vehicle to accelerate. However, this also makes the vehicle harder to control than on flat ground, so overtaking should be avoided on downhill sections. Below is an extended explanation: Vehicle Driving Resistance: This refers to the resistance encountered by a vehicle during motion, including air resistance, rolling resistance, gradient resistance, and acceleration resistance. Among these, rolling resistance and air resistance are present under all driving conditions, while gradient resistance and acceleration resistance only exist under specific driving conditions. Increased Vehicle Driving Resistance: This refers to the sensation of insufficient power during driving, where the vehicle speed does not match the gear, and fuel consumption increases. On straight and flat roads, when the vehicle is coasting in neutral, the coasting performance deteriorates.