Question #1. View the Interactive titled “Lift and Drag” located at http://www.pbs.org/wgbh/nova/space/lift-drag.html. assess each of the four main types of airfoils for function and purpose. Note: Be sure to include how each impacts lift and drag, as well as what type of aircraft is best suited for each. Provide two other practical uses for airfoils.
Question #2. Read the question and answer titled “Why don’t I fall out when a roller coaster goes upside down?” located at http://2008.myvote.org/www.loc.gov/rr/scitech/mysteries/rollercoaster.html. Imagine that you are trying to convince your apprehensive friend John to take his first roller-coaster ride. Explain to John how 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.
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