Physics 151: Lecture 26, Pg 9
Two identical uniform bricks of length L are placed in a stack over the edge of a horizontal surface with the maximum overhang possible without falling, as in Figure below. Find the distance x.
If the CM of the two bricks does not lie over the edge, then the bricks balance.
If the lower brick is placed L/4 over the edge, then the second brick may be placed so that its end protrudes 3L/4 over the edge.