Final answer:
To safely regain control of a vehicle leaving the road, take your foot off the gas and steer back when slowed. Stop and remain stationary for emergency vehicles. Ease off the brake pedal before stopping to prevent a je_rky halt, dealing with static and kinetic friction.
Step-by-step explanation:
The question is regarding what actions should be taken when a vehicle starts to leave the road. The correct procedure is to take your foot off the gas pedal, and steer back onto the road when the vehicle has slowed down sufficiently. This addresses the principle of safe driving and vehicle control. Even more important is how to respond when you encounter an emergency vehicle such as an ambulance: it is imperative to stop moving and become stationary until it passes by. This ensures that you don’t interfere with its progress and that you respect the rules of the road during an emergency.
When learning to drive, you will also discover that to prevent the car from stopping with a je_rk, you need to let up slightly on the brake pedal as you come to a stop. This is due to the difference between static and kinetic friction: kinetic friction is what slows the car down as the brakes are applied, but as the car comes to a halt, static friction keeps it stationary. Easing off the brake pedal just before stopping ensures a smoother halt.