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| Pilots of high-performance fighter planes can be subjected I to large centripetal accelerations during high-speed turns. Because of these accelerations, the pilots are subjected to forces that can be much greater than their body weight, leading to an accumula- tion of blood in the abdomen and legs. As a result, the brain becomes starved for blood, and the pilot can lose consciousness (“black out"). The pilots wear “anti-G suits" to help keep the blood from draining out of the brain. To appreciate the forces that a fighter pilot must endure, consider the magnitude Fy of the normal force that the pilot's seat ex- erts on him at the bottom of a dive. The magnitude of the pilot's weight is W. The plane is traveling at 230 m/s on a vertical circle of radius 690 m. Determine the ratio Fx/W. For comparison, note that blackout can occur for values of Fx/W as small as 2 if the pilot is not wearing 42. an anti-G suit.

| Pilots of high-performance fighter planes can be subjected I to large centripetal accelerations during high-speed turns. Because of these accelerations, the pilots are subjected to forces that can be much greater than their body weight, leading to an accumula- tion of blood in the abdomen and legs. As a result, the brain becomes starved for blood, and the pilot can lose consciousness (“black out"). The pilots wear “anti-G suits" to help keep the blood from draining out of the brain. To appreciate the forces that a fighter pilot must endure, consider the magnitude Fy of the normal force that the pilot's seat ex- erts on him at the bottom of a dive. The magnitude of the pilot's weight is W. The plane is traveling at 230 m/s on a vertical circle of radius 690 m. Determine the ratio Fx/W. For comparison, note that blackout can occur for values of Fx/W as small as 2 if the pilot is not wearing 42. an anti-G suit.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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| Pilots of high-performance fighter planes can be subjected I to large centripetal accelerations during high-speed turns. Because of these accelerations, the pilots are subjected to forces that can be much greater than their body weight, leading to an accumula- tion of blood in the abdomen and legs. As a result, the brain becomes starved for blood, and the pilot can lose consciousness (“black out"). The pilots wear “anti-G suits" to help keep the blood from draining out of the brain. To appreciate the forces that a fighter pilot must endure, consider the magnitude Fy of the normal force that the pilot's seat ex- erts on him at the bottom of a dive. The magnitude of the pilot's weight is W. The plane is traveling at 230 m/s on a vertical circle of radius 690 m. Determine the ratio Fx/W. For comparison, note that blackout can occur for values of Fx/W as small as 2 if the pilot is not wearing 42. an anti-G suit.
Transcribed Image Text:| Pilots of high-performance fighter planes can be subjected I to large centripetal accelerations during high-speed turns. Because of these accelerations, the pilots are subjected to forces that can be much greater than their body weight, leading to an accumula- tion of blood in the abdomen and legs. As a result, the brain becomes starved for blood, and the pilot can lose consciousness (“black out"). The pilots wear “anti-G suits" to help keep the blood from draining out of the brain. To appreciate the forces that a fighter pilot must endure, consider the magnitude Fy of the normal force that the pilot's seat ex- erts on him at the bottom of a dive. The magnitude of the pilot's weight is W. The plane is traveling at 230 m/s on a vertical circle of radius 690 m. Determine the ratio Fx/W. For comparison, note that blackout can occur for values of Fx/W as small as 2 if the pilot is not wearing 42. an anti-G suit.
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