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Q. A man of mass 65 kg falls stiff-legged straight down from a height of 2m. He lands on one foot. The femur is a bone in the leg with length L=.65m, and a cross-sectional area of about 2.0 x 10^-4m^2. The Young's modulus for the bone is 9.4x 10^9 N/m^2(compression).A compressive force in excess of 6.8x 10^4 N will fracture this bone.

what is the equivalent spring constant k of this bone?
find the maximum compression x that the bone undergoes as a result of this fall.
what is the maximum force that the femur bone experiences?
will the bone fracture?

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