1. The problem statement, all variables and given/known data I was just thinking about the fact that torque = rxF = I*alpha when there is no translation. Suppose that I had a lever (length 2r) with a pivot in the middle, and I attached a weight of mass m on the end. The torque would be rmg and the angular acceleration would be rmg/I, right? But now suppose that I dropped the weight from some height. One would expect that the angular acceleration of the lever would be greater for the weight that was dropped from the height. Yet, as far as I can tell, the force on the weight is still mg! Does this mean that angular acceleration does not depend on the momentum of the weight?