Not a clue
A roller-coaster would go faster with more people in it because with moer people the better the ride alsothe people that are ridding will give the roller-coaster potential energy. A roller-coaster would go slower with an empty car will give the roller-coaster kinetic energy than with peolpe in it.
The world's faster car must be faster than the world's fastest roller coaster.
between the wheels of the car and the track
It is when the car is at its highest point.
"Voiture de montagnes russes"
2000 much
The first roller coaster really invented was invented by the french in 1812. It was based on the Russian ice mountains which was a car sliding down an icy hill. Other people think the Switchback railroad was the first roller coaster. It was designed by LaMarcus Thompson. It was in Coney Island in Brooklyn, NY. It was based on a gravity railroad.
Some roller coaster rides can go faster than the average speed of cars. The fastest roller coaster ride in the world is the Formula Rossa in the UAE. It goes 149 mph.
500 kg
Basically, the car goes whooooooossshhhh down the slopes and climbs up the hills because of gravity and stuff. :D THEN, fat people vomit and skinny people fall out whilst tripling.
Every modern car has micro-processors to control the engine and others for systems.