Apply motion on GeometryCollection after fracturing

I want to apply motion on the fractured pieces of a downed plane, so they dont just stick to the impact location but move with the plane’s last horizontal velocity.
So far i spawn in the geometry collection and try to apply any motion on it when fracturing. No matter what i do: “Apply Impulse”, “Apply Force” and even set actor world offset per tick won’t move the thing one bit. What is the best way to do that? Or can’t that be done ?