Answer
The angular momentum of the slab will be negative for path 1, path 4, and path 7.
Work Step by Step
The angular momentum will be negative if the gum causes the slab to rotate in the clockwise direction.
We can see that path 1, path 4, and path 7 will cause the slab to rotate in a clockwise direction.
Therefore, the angular momentum of the slab will be negative for path 1, path 4, and path 7.
