(Solved):
The concrete "gravity" dam is held in place by its own Part A weight (Figure 1). The density of co ...
The concrete "gravity" dam is held in place by its own Part A weight (Figure 1). The density of concrete is \( \rho_{c}=2.5 \mathrm{Mg} / \mathrm{m}^{3} \), and water has a density of \( \rho_{w}=1.0 \mathrm{Mg} / \mathrm{m}^{3} \). Suppose that \( a=1 \mathrm{~m}, h=8 \mathrm{~m} \). Determine the smallest dimension \( d \) that will prevent the dam from overtuming about its end \( A \). Express your answer to three significant figures and include the appropriate units.