3.8 The discs in the spinal column can withstand a stress (force per unit area) of 1.1 x 107 N/m2 before they rupture. (a) If the cross-sectional area of your discs is 10 cm, what is the max- imum force that can be applied before rupture takes place? [Answer: 1.1 x 10 N] (b)Estimate the stress at a disc located at the level of the center of gravity of your body when you are standing vertically. [Answer: 3.5x 10 N/m21 (c) What types of situations might the body experience where the stress on this vertebra would be much larger than in (b) above? PROBLEM

Elements Of Electromagnetics
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3.8 The discs in the spinal column can withstand a stress (force per unit
area) of 1.1 x 107 N/m2 before they rupture.
(a) If the cross-sectional area of your dises is 10 cm2, what is the max-
imum force that can be applied before rupture takes place?
[Answer: 1.1 x 10 N]
(b) Estimate the stress at a disc located at the level of the center of
gravity of your body when you are standing vertically. [Answer:
3.5 x 10 N/m2]
(c) What types of situations might the body experience where the
stress on this vertebra would be much larger than in (b) above?
PROBLEM
Transcribed Image Text:3.8 The discs in the spinal column can withstand a stress (force per unit area) of 1.1 x 107 N/m2 before they rupture. (a) If the cross-sectional area of your dises is 10 cm2, what is the max- imum force that can be applied before rupture takes place? [Answer: 1.1 x 10 N] (b) Estimate the stress at a disc located at the level of the center of gravity of your body when you are standing vertically. [Answer: 3.5 x 10 N/m2] (c) What types of situations might the body experience where the stress on this vertebra would be much larger than in (b) above? PROBLEM
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