The three identical boxes shown in Figure remain at rest on a rough, horizontal surface, e...

The three identical boxes shown in Figure remain at rest on a rough, horizontal surface, even though they are acted on by two different forces, and . All of the forces labeled have the same magnitude; all of the forces labeled are identical to one another. Rank the boxes in order of increasing magnitude of the force static friction between them and the surface. Indicate ties where appropriate.

FIGURE