A 72.0-kg pilot at an air show performs a loop de loop with his plane. At the bottom of the 88.8-m radius loop, the plane is moving at 56.0 m/s. Determine the normal force acting upon the pilot.

Irada Inavator is standing in an elevator when it begins to accelerate upward. With a 56.1-kg mass, Irada begins to accelerate upward at 1.66 m/s/s. If Irada were standing upon a Newton force scale as the elevator accelerates upward, then what force would the scale read?

Darrel Deval is pleasing the Air Show crowd by performing a collection of loop-de-loops in his stunt plane. At the top of one loop, the plane is upside down while flying at 37.3 m/s. Darrel is completely weightless and experiencing no normal force. Calculate the radius of curvature of the loop.