A rollercoaster works by making use of gravity, hence the initial large hill you go down or magnetically-powered "rail-gun" launch at the start of the ride. A rollercoaster does not have any form of propulsion in the cars themselves, inertia is the only thing that keeps it going, without careful track planning a rollercoaster can actually stop somewhere along the track because it runs out of kinetic energy!
Of course not!!
45mph
yes you can die in a rollercoaster.
montaña rusa
well you need lots of space and money. then a contractor and roller coaster parts.
Yes,he loves rollercoatsers
Gravity Drag Friction Propelling force
no one knows
Money, dentures, jewellery...
kingda ka (six flags great adventure)
there is a big chain that pulls the cart - like a conveyor belt
Brakes, either using friction or magnets, are used to slow down or stop the train usally at the end of a roller coaster ride.