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Bone Elasticity

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Young's modulus for bone is about 1.0 x 10^10 Pa. Bone can take only about a 1.0% change in its length before fracturing.

a) What is the maximum force that can be applied to a bone whose minimum cross sectional area is 3.0 cm^2?

b) Estimate from what maximum height a 70 kg person (one weighing about 150lb) could jump and not fracture the tibia. Take the time between when the person first touches the floor and when he or she has stopped to be .020 s, and assume that the stress is distributed equally between the person's two legs.

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Solution Summary

This solution provides a quick response for calculating force and height in relation to the elasticity of bones in relation to weight and area.

Solution Preview

(a) E=L0*F/((delta L)*A), where E is the Young's modulus.
Now, ...

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