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time on a particular hill is dependent on the velocity of the train, gravity, and the radius of the track's transition from ascent to descent. Zero-G (where the net vertical G-force is 0) is achieved when the downward acceleration of the train is equal to that due to gravity; where the downward acceleration is greater, negative Gs arise.
170:. The negative g-forces that a rider experiences is what creates the sensation the rider feels of floating out of their seat. With roller coasters, air time is usually achieved when the train travels over a hill at speed. There are different sensations a rider will feel depending on the ride being an ejector or floater airtime ride.
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U.S. News & World Report - Volume 127, Issues 1-8 - Page 66 1999 -"In search of lost whirls
Touring America's retro amusement parks where children have visited Gepetto's workshop and the Old Lady ... "All of that air time, minimal restraints— there's just nothing like the Jack Rabbit anymore," he
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of the train and the riders: as the train goes over a hill transitioning from an ascent into a descent guided by the rails, the inertia of the relatively loosely-attached riders causes them to momentarily continue upwards, resulting in the riders being lifted out of their seats. The duration of air
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Air time is generally understood to fall under two categories: "floater" air time and "ejector" air time. Floater air time provides passengers with the sensation of gently floating upwards, which can be described as near perfect weightlessness. Ejector is more violent and sudden, producing a sharp
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Guinness World
Records 2001- Page 86 "Superman The Escape, located at Six Flags Magic Mountain, Valencia, California, USA, is the fastest roller coaster in the world. They experience a record 6.5 seconds of 'airtime', or negative
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moment of negative g-forces lifting riders up off their seats. Roller coasters built by the manufacturing company
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Jackson, New Jersey, are rides known for having a particularly high total air time. Upon opening in 2018 at
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is a roll specifically designed to create the effect of weightlessness and thereby produce air time.
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also includes the sensation of weightlessness after takeoff, just as one enters space.
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356:"Roller Coasters, G Forces, and Brain Trauma: On the Wrong Track?"
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hill is a common way of achieving air-time on a roller coaster
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397:"G-Forces and Greyouts: The Science Behind Roller Coasters"
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Feeling of weightlessness experienced on an amusement ride
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