Using trigger boxes to add a velocity to a second static mesh

For Example:

Lets say the player is walking through a canyon, when he walks through a trigger box within the canyon it triggers a boulder to fall in front of them creating a hazard?

At the moment i have a OnActorBeginOverlap(TriggerBox) then i am adding a Add Radial Force Component and applying the sphere mesh that i have in the world as the target.

All i need to do now is add a force or impulse to trigger the sphere to move in the correct direction.

Not sure if that makes sense :slight_smile: