Read the article titled “Why don’t I fall out when a roller coaster goes upside
down?” under the Forces terms section of the Science corner. You can also view
it at http://www.loc.gov/rr/scitech/mysteries/rollercoaster.html.
Next, imagine that you are trying to convince your apprehensive friend John to
take his first roller-coaster ride. Then, explain to John the manner in which
the roller-coaster engineers use physics to create a safe, yet thrilling
ride. Note: In your explanation, be sure to include a
discussion of potential energy, kinetic energy, angular momentum, frictional
forces, and inertia when analyzing all aspects of the roller-coaster ride.