Chapter 3, Problem 51P

Rock faults are ruptures along which opposite faces of rock have slid past each other. In Fig. 3-35, points A and B coincided before the rock in the foreground slid down to the right. The net displacement $\stackrel{\to }{AB}$ is along the plane of the fault. The horizontal component of $\stackrel{\to }{AB}$ is the strike-slip AC. The component of $\stackrel{\to }{AB}$ that is directed down the plane of the fault is the dip-slip AD. (a) What is the magnitude of the net displacement $\stackrel{\to }{AB}$ if the strike-slip is 22.0 m and the dip-slip is 17.0 m? (b) If the plane of the fault is inclined at angle ϕ = 52.0° to the horizontal, what is the vertical component of $\stackrel{\to }{AB}$?

Figure 3-35 Problem 51.