Kingda Ka is a steel accelerator roller coaster located at Six Flags Great Adventure in Jackson, New Jersey, United States. It is the world's tallest roller coaster, the world's second fastest roller coaster, and was the second strata coaster ever built. Top Thrill Dragster at Cedar Point was the first. The train is launched by a hydraulic launch mechanism to 128 miles per hour (206 km/h) in 3.5 seconds. At the end of the launch track, the train climbs the main top hat tower, reaching a height of 456 feet (139 m) and spanning over a 3,118-foot-long (950 m) track by the end of the ride.
Imagine you’re a roller coaster designer entrusted with the task of designing the next big attraction for a nearby theme park. Some criteria for your coaster includes a starting height of 200 ft, a dive below ground level at 3 seconds into the ride, a return to ground level at 5 seconds, and another dive beneath the ground 10 seconds later.