The twp thigh bones (femurs ), each of cross - sectional area 10 cm2 support the upper part of a human body of mass 40 kg. Estimate the total pressure sustained by both the femurs. ( Given g = 10 m / s2 )

Dear student,

Please find below the solution to your asked query.

$$\begin{gathered} Pressure = \frac{force}{area} \\ force = weight of the body =mg = 40\times 10 = 400 N \\ area = 2\times area of each bone = 2\times 10\times {10}^{-4} m^2 \\ pressure = \frac{400}{2\times {10}^{-3}} = 2\times {10}^5 pascal \end{gathered}$$
Hope this information will clear your doubt about force and pressure.

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