# From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg

###### Question:

From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and assume the CM of the person moves a distance of 0.65 m from the standing to the seated position (that is, in breaking the fall). Assume the breaking strength (force per unit area) of bone is 170*10^6 N/m^2, and its smallest cross-sectional area is 2.5*10^- 4 m^2

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