It’s always frustrating to not find out the correct answer if you got something wrong on a test. When you’re driving downhill, your vehicle will accelerate due to the force of gravity pulling on your car.
This means that when you’re going downhill, you’ll need more time to stop than you normally would. If you drive a manual car, you might even need to shift into a lower gear. Otherwise, you should apply your brakes to counteract gravity’s downward pull.