Heyo! I'll do my best to ask this question as clear as possible, but since English is not my mother tongue it might be hard :D

I added the assignment above. S is the point of rotation and the arrows are all the forces that make it rotate. I have to put them all in order from the one with the lowest momentum first to the one with the highest momentum. I got to the point where I could say F5 was first, because that one doesn't have any momentum. But I could't get any further. What do i need to do / calculate in order to be able to do this assignment?