Answer
$5.1 \times 10^4 N$.
Work Step by Step
Set the compressive strength of bone (Table 9-2) equal to the applied stress on the bone.
Compressive strength = $\frac{F_{max}}{A}$
$$F_{max}=(170\times 10^6 N/m^2)(3.0 \times 10^{-4}m^2)= 5.1 \times 10^4 N $$
