this image shows the various forces acting on a block of rock situated on a rock slope. which arrow…

this image shows the various forces acting on a block of rock situated on a rock slope. which arrow represents shear strength?\na) 1\nb) 2
Answer
Brief Explanations:
Shear strength resists the sliding of the rock block along the slope - surface. The force that acts parallel to the slope surface and resists the movement of the block is the shear - strength force. In the given image, arrow 2 is parallel to the slope surface and represents the shear strength.
Answer:
B. 2