![]() ![]() The radius of these circular sections is decreasing as one approaches the top of the loop. To simplify our analysis of the physics of clothoid loops, we will approximate a clothoid loop as being a series of overlapping or adjoining circular sections. A mere inspection of a clothoid reveals that the amount of curvature at the bottom of the loop is less than the amount of curv ature at the top of the loop. Unlike a circular loop in which the radius is a constant value, the radius at the bottom of a clothoid loop is much larger than the radius at the top of the clothoid loop. A clothoid is a section of a spiral in which the radius is constantly changing. Roller coaster loops assume a tear-dropped shape that is geometrically referred to as a clothoid. The most obvious section on a roller coaster where centripetal acceleration occurs is within the so-called clothoid loops. These sections include the clothoid loops (that we will approximate as a circle), the sharp 180-degree banked turns, and the small dips and hills found along otherwise straight sections of the track. And in this part of Lesson 2, we will focus on the centripetal acceleration experienced by riders within the circular-shaped sections of a roller coaster track. Roller coasters are about acceleration that's what makes them thrilling. Roller coasters thrill us because of their ability to accelerate us downward one moment and upwards the next leftwards one moment and rightwards the next. The thrill of roller coasters is not due to their speed, but rather due to their accelerations and to the feelings of weightlessness and weightiness that they produce. It is more than likely that most of us sustain higher speeds on our ride along the interstate highway on the way to the amusement park than we do once we enter the park. The thought prompts one to consider what is it about a roller coaster ride that provides such widespread excitement among so many of us and such dreadful fear in the rest? Is our excitement about coasters due to their high speeds? Absolutely not! In fact, it would be foolish to spend so much time and money to ride a selection of roller coasters if it were for reasons of speed. Each day, we flock by the millions to the nearest park, paying a sizable hunk of money to wait in long lines for a short 60-second ride on our favorite roller coaster. If you are a Rock ‘n’ Roller Coaster fan, and want to stock up on new apparel, be sure to visit Legends of Hollywood and Disney’s Hollywood Studios.People are wild about amusement parks. This shirt is available now for $36.99! Where To Get Them ![]() I don’t think I have ever really seen anything like it. The black an brown almost charcoal pattern of the shirt is what really makes it unique however. The limo that guests ride in, is also present on this shirt, with flames coming out of the back. This shirt features the attraction logo that we have seen frequently throughout the years, with the loop shaped keyboard with a guitar neck through the middle. The second new Rock ‘n’ Roller Coaster shirt is a little simpler than the first. If you are a fan of classic rock, and the attraction itself, this is a great shirt! You can get it today for $29.99. If you look closely beneath the limo, you can even find the G-Force Records logo! In addition to the words “Rock ‘N’ Roller Coaster” the shirt features the top of a guitar, a stretch limo, and the All Nite Donuts sign that guests see while on the attraction. The faded grey and red shirt features some of the attraction’s memorable icons. The first shirt looks like it came straight from a 1980s concert. Today for example, when visiting Legends of Hollywood at Disney’s Hollywood Studios, we came upon two new Rock ‘n’ Roller Coaster shirts that fans of the attraction are sure to love. ![]()
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