Practice Exam Form 1 Question #95

[heatherrivera]

I’ve yet to find a helpful diagram on this which surprises me because it is so vivid in my memory from structure class. As best I can explain it’s pressure = 1/2bh^2. The diagram is the cross section of the retaining wall; and the forces create a right triangle - with the greatest force at the base. You’re taking the area of this triangle. In this example the 40’ doesn’t matter.