Question

there is a repulsive force that pushes the two magnets apart. what sign is this force? negative positive

Explanation:

In the context of force between like - charged (or like - poled, in the case of magnets) objects, when we define the direction of the force, a repulsive force that pushes objects apart is often assigned a positive sign (depending on the coordinate system and sign convention where forces in a certain direction are positive). Here, the two magnets (with like poles, as indicated by the '+' symbols) experience a repulsive force that pushes them apart. Following the common sign convention for such forces, this repulsive force is considered positive.

Answer:

Positive