Roller Coasters don't necessarily have an engine, because they use the forces of gravity and inertia to propel themselves forward. A roller coaster usually goes up and down the main hill, which then creates enough velocity to keep it going through the rest of the ride and the smaller hills.
two
There is 4 roller coasters. Aftershock, Timber Terror, Tremors and the Corkscrew. Which all of the roller coasters are awesome!!!!!!!
it gets launched by the settings,engines
Actually, you can breath on roller coasters.
The noun 'roller coaster' has no standard collective noun since most roller coasters are not in a group. However, a collective noun is an informal part of language. Any noun the fits the situation can function as a collective noun; for example, a scream of roller coasters, a maze of roller coasters, a park of roller coasters, a tour of roller coasters, etc.
11. But, there will be one more added in the Spring of 2012 to make it a total of 12.
Cedar Point in Ohio, and Six Flags Magic Mountain in California both have 17 roller coasters each, the most roller coasters at any amusement park in the world.
According to Roller Coaster Data Base, there are currently 174 wooden roller coasters operating around the world.
well, it has 27 roller coasters
9733 as of 2011
32,700
7