In a roller coater, Newton's Laws apply to them greatly. In his first law, he talks about inertia. When the mass of an object is greater, the greater the inertia is. In his second law, he talks about acceleration. Acceleration is the rate at which the velocity changes. In his third law, he talks about force. All of his laws are required to have a roller coaster to work.
The roles that my group had to make the roller coaster were: the Historian, The Design Engineer, The Physicist, and The Lawyer. I had the Physicist. I had to find out all the physics that were involved in making a roller coaster. I found out that the speed of the coaster has to be great enough to make it into the station. When you go over a hill, you can sometimes feel the gravatational force holding you in your seat. When you go around a turn at a high speed, you can feel the velocity. Potential and Kinetic energy help the coaster move around the track.
I built a roller coaster. It failed the first time, but it worked the second time. Here is my roller coaster that failed:
When I first tried my coaster, I had a loop after the drop and I had a hill after the loop. The hill slowed down the coaster a little bit, but it wasn't enough. The coaster reached the station, but crashed through the station.
Here is my roller that worked:
The reason my roller coaster worked was because I applied everything that I found out into the coaster. The coaster had a hill right after the lift hill. After that hill, I have a loop to slow the coaster down a little bit. After the loop, I had a drop to slow the coaster down more and a hill to make the coaster come into the station slow enough to make it stop. The coaster did stop without crashing though.