Question

Yes, "Because he has a bigger engine, making the vehicle heavier, it applies more energy to stop, hence the reason to why it is not a safe vehicle to drive on the road. With faster speeds and a heavier vehicle, it will cause the vehicle to have more momentum, taking a longer time to slow down and stop. Which is unsafe to drive on the road due to the lack of distance between other vehicles." I would like to add some more on your post. When a car is moving with certain speed, once a brake is applied it slows down and comes to complete stop. The distance the car travel before coming to complete stop depends on the cars speed before applying break and how much brake you applied. In order to calculate distance before coming to rest we use formula distance = speed of car²/(2*deceleration). This is how that square of the velocity has been used. "What are some other conditions or issues that could cause the car to not stop when needed besides those mentioned? I feel that tires and brake fluid could also be a factor." Sometime icy road, wet road might decrease the friction between tires and road resulting difficult to stop quickly.

Answer 1

The "reaction time" of driver is one of the main factor that influence stopping distance. The average reaction time for a perfect human is 0.25 seconds for visual informations.

Stopping distance= breaking distance + reaction distance

This reaction distance is depens on reaction time . The tiredness, alcoholic content in blood and distractions to the driver etc affect the reaction distance and thereby stopping distance.

Smoothness of tires:: smoothness of tiers reduces the friction between road and tires. This also increases the stopping distance.

Mass of car . Hevy vehicles take more time to stop