Well, get the position of mouse click with position of the object (get x and y position float). Then you can compare y position of the click with position of the object. If y of the click is greater than objects, apply force down, if it's lower, apply force up.
On a separate FSM you can have the same for x axis, so the object will get vertical and horizontal force from both FSM and move appropriately.
To tune the amount of force, you can clamp it and to be more precise you can play around with remapping float value.
Or there's a complicated solution getting the vector2, getting the distance between object vector and click vector, then invert it and apply force, but it's complicated and i believe the first one is easier to grasp and to use.