The project's report should contain an explanation about the physics laws governing roller coaster design, a comprehensive description how roller coasters work and how different variables affect roller coaster design. For example, what happens to the coaster when we change variables such as the height of hills, length of track, mass of the coaster, and speed of the coaster? Why don't the cars of a roller coaster fly off the track? Why don't passengers fly out of the cars? How high can the first hill of a roller coaster be? What physics law determine how many hills, curves, and loops a roller coaster track can have? What is the role of gravity and friction? As an introduction of the project's report, discuss a little about the history of roller coasters, advantages and disadvantages in wooden and steel roller coasters, most famous ones and any other interesting facts about roller coasters