Chapter 12, Problem 5Q

A ground retaining wall is shown in Fig. 12–40a. The ground, particularly when wet, can exert a significant force F on the wall. (a) What force produces the torque to keep the wall upright? (b) Explain why the retaining wall in Fig. 12–40b would be much less likely to overturn than that in Fig. 12–40a.

FIGURE 12–40 Question 5.