Consider two small magnets (treat them as pointlike perfect dipoles with magnetic moments m1 and m2, to keep life as simple as possible).

Considertwosmallmagnets(treatthemaspointlikeperfectdipoleswithmagneticmomentsm1andm2,tokeeplifeassimpleaspossible).Fortheconfigurationshown("oppositepolesfacing"),drawadiagramshowingtherelativeorientationofthemagneticdipolesm1andm2ofthetwomagnets.Thenfindtheforcebetweenthemasafunctionofdistanceh.Explainwhythesignoftheforcedoes(ordoesnot)makesensetoyou.