A rod initially held vertically is falling on a frictionless surface when given a slight push.I just want to how the rod would move.I am thinking that the rod as a whole will move forward and also rotate about the point on the ground. Why the rod is moving forward?(if you ask me) I think that the CM is going in circular motion and thus will experience an outward pull. This force will take the rod forward. But i have heard that the rod purely rotates and does not move forward as a whole. check this link http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2541 What is wrong in my argument?