If it has a chain lift, the rollercoaster is dragged to the top of the hill by a chain, and then gravity causes it to roll along the rest of the track. But, rollercoasters can also be magnetically or hydrolically be launched using special motors and equipment.
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.