Doesn't matter. The same set of forces can either "balance" or "not balance", depending on how you group them.


Here's the same numbers non-balanced:

+1 accelerator.
-1 1st turn.
+1 2nd turn.

+2 accelerator.
-3 1st turn.
+3 2nd turn.

+3 accelerator.
-6 1st turn.
+6 2nd turn.

All this just demonstrates the meaninglessness of trying to balance forces that aren't being applied simultaneously.