Answer:
explanation of the physics of roller coasters
Step-by-step explanation:
By reading the magazine introduction we can infere that we are reading a science magazine, a physics one to be more precise. We can know this because although they describe the sensations people feel when riding a roller coaster, they shift the topic to one related with science-class lessons and scientific terms. They want us to aknowledge that although we don't think about it, at the moment of adrenaline, a lot of theory and math was tought so you could have fun in a safe way. It is all prepared for a physycal explanation of the ride.