The femur, the long bone in the thigh, can be modeled as a tube of compact bone for most of its length. The cross-section area of the compact bone in the femur of a 70 kg person is 4.8 x 10-4 m2, a typical value.a. If this person supports his entire weight on one leg, what fraction of the tensile strength of the bone does this stress represent?b. By what fraction of its length does the femur shorten?

Elements Of Electromagnetics
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The femur, the long bone in the thigh, can be modeled as a tube of compact bone for most of its length. The cross-section area of the compact bone in the femur of a 70 kg person is 4.8 x 10-4 m2, a typical value.
a. If this person supports his entire weight on one leg, what fraction of the tensile strength of the bone does this stress represent?
b. By what fraction of its length does the femur shorten?

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