The type of motion that does not contribute to slope failure is shear. While shear stress can influence slope instability, it does not represent a movement. In contrast, flow, slide, and fall are all forms of motion that can lead to slope failure.
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Shear is the type of motion that does not directly contribute to slope failure. While shear stress can lead to instability, it does not represent movement like flow, slide, or fall. Therefore, understanding the different motions helps clarify that shear is not a moving process relevant to slope failure. ;