With most drop towers, a gondola carrying riders is lifted to the top of a large vertical structure, then released to free-fall down the tower. Magnetic brakes immediately slow the gondola as it approaches the bottom half of the tower.
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As you ride a roller coaster, its wheels rub along the rails, creating heat as a result of friction. This friction slows the roller coaster gradually, as does the air that you fly through as you ride the ride.
1. Drop Towers: Drop towers are thrilling rides that take riders to great heights and drop them at high speed. Unfortunately, these rides can also cause injuries such as neck injuries, back injuries, and fractures due to the sudden jolt of the ride.
A roller coaster ride comes to an end. Magnets on the train induce eddy currents in the braking fins, giving a smooth rise in braking force as the remaining kinetic energy is absorbed by the brakes and converted to thermal energy.
Risk to Those With Cardiovascular IssuesPeople with high blood pressure and/or heart conditions are warned not to ride roller coasters because of the way they tax the cardiovascular system. The adrenaline rush that roller coasters give you causes a rapid spike in your heart rate and blood pressure.