want to there's no restriction so you see that this pendulum is offset over angle theta and it will start to also taid back and forth and the question is what is the period so clearly we make old entire qraritational force 8.00 in the center of mass this is force acting that points not compete question to any other force acting on this or is this the only when you study got a call forces into who is happy that we have taken all forces you to come raise your hand good who says no to have to be at least one other force which forces that yeah I'm not even though she waivers that where does it act Okey sorta must be some how force at P to hold it up otherwise it would just start to accelerate don't know I'm not even sure that it is straight up I doubt that It may simple be a direction I don't want to think about that which surely has to be a force up now remember every cause I'm a when you deal with rotation objects