I could call myself a roller coaster enthusiast. I recently visited Disney World, and one of my absolute favorite rides is the Aerosmith Rock 'n Roller Coaster. This roller coaster ride is very unique. In order to see why, I'll first talk about how most other roller coasters work. Most roller coasters start by slowly going up one big hill (which is always the tallest). As it goes up to the top, it gains potential energy, which is converted to kinetic energy as it goes down the hill. This gives it its speed and momentum for the whole ride.
However, the Rock 'n Roller Coaster works differently. Instead of a slow start filled with anticipation going up a hill, the roller coaster goes from 0 to 57mph in less than 2.8 seconds; that's an acceleration of about 25.48m/s^2! This gives the Rock 'n Roller Coaster the momentum it needs for the ride full of hills, loops, and music! And by the way, the ride takes a picture in those initial 2.8 seconds!