(Solved): Calculate the ultimate net bearing capacity of (a) a strip footing \( 2 \mathrm{~m} \) wide, (b) a ...

Calculate the ultimate net bearing capacity of (a) a strip footing \( 2 \mathrm{~m} \) wide, (b) a square footing \( 3 \mathrm{m \times} 3 \mathrm{~m} \), and (c) a circular footing \( 3 \mathrm{~m} \) in diameter. All footings are located on the ground surface and the groundwater level is at the ground surface. The soil is medium-dense coarse-grained with \( \gamma \) sat \( 1 / 417 \mathrm{kN} / \mathrm{m} 3 \).