Electrical power is typically used to get the train up to the top of the lift hill. After it reaches the top, gravity takes over.
Roller Coasters utilize Diesel only in the event of a power loss. Most modern day coasters use electrical power to compress air to power the brakes and emergency mechanisms.
You ride in the seats of a roller coaster.
no
I want to go on that roller coaster
Yes you have to use the cheat for no limits on roller coaster height and then build your roller coaster extremely high (it will take ages) then ride it and you leave earth eventually.
For the medium capacity roller coasters, electro-magnetic launchers are used to launch roller coaster trains. Such a launch draws high peak powers up to 2 MW. For larger capacity roller coaster, with larger and heavier trains, an electro-magnetic launcher would draw too much power. For these high apacity coaster, Bosch Rexroth developed a hydraulic launch system which is capable of accumulating required power in between the launches. This allows for heavy (high capacity) train launches within the limitations of the power net.
kinetic
It depends on which type of roller coaster. Some of then use a magnet to get their speed. Other use a pressure, or they just let gravity do all the work.
Kilometers
Love in an elavator!
Steel
I was very queasy after riding the loopy roller coaster.
You could buy a k'nex roller coaster, Icoaster, RCT3, Nolimitscoaster or just make one using wire for supports and use aluminum foil for the track.