Free Body Diagrams and Final Pillow Model
These free body diagrams show the amount of gravitational pressure felt by an individual depending on their inclination with respect to the ground (zero degrees).
As is seen, when there is no inclination, the force of gravity on a person is the greatest. If the person is at a 60 degree incline however, the force of gravity is only equal to mgcos(60). This means that as the inclination angle increases, the force of gravity exerted on an individual decreases. This also means that it becomes easier for a person to take in more oxygen as his/her air passages are less-blocked than they were if s/he were to lay down flat.
The following images are the final models of the elevated pillow mechanism. The first image has an elevation angle of 45 degrees while the second has an elevation angle of 60 degrees.
These free body diagrams show the amount of gravitational pressure felt by an individual depending on their inclination with respect to the ground (zero degrees).
As is seen, when there is no inclination, the force of gravity on a person is the greatest. If the person is at a 60 degree incline however, the force of gravity is only equal to mgcos(60). This means that as the inclination angle increases, the force of gravity exerted on an individual decreases. This also means that it becomes easier for a person to take in more oxygen as his/her air passages are less-blocked than they were if s/he were to lay down flat.
The following images are the final models of the elevated pillow mechanism. The first image has an elevation angle of 45 degrees while the second has an elevation angle of 60 degrees.
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| Forty Five degree angle |
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| Sixty Degree Angle |
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