Subtopic: Thermodynamic principles of I.C. engines
Question Statement:
According to Bekker's soil sinkage equation $p = \left(\frac{k_c}{b} + k_\phi\right) z^n$, a plate of width $b = 10\text{ cm}$ sinks $z = 4\text{ cm}$ under a vertical contact pressure. If $n = 1.0$, $k_c = 15\text{ N/cm}$, and $k_\phi = 2.5\text{ N/cm}^2$, calculate the contact pressure $p$ in $\text{N/cm}^2$.