I have done some extensive self study on MOI but I don't understand it's meaning in application. An example is imagine a stick of butter is dropped on the ground. Now ignoring friction and the other variables we can remove for learning purposes, let's assume the butter stick is kicked and it is gliding along the ground and it isn't rolling or rotating at all...it is just gliding almost like a knuckleball...no movement other than the friction-less glide across the ground. On it's vertical axis it has a MOI value of 4000 grams/cm^2. THIS is where I am confused. I understand this is the torque needed for a desired angular acceleration, but I need help.....If this object has no rotation on it's vertical axis b/c it is just gliding along the ground and some pressure of 4000 grams/cm^2 is placed on this object what does this do to the spinning/rotating along the vertical? Does 3999 grams/cm^2 not even change any motion? I feel any pressure applied to this object would change the rotation so what does 4000 actual represent? Does it represent a certain predetermined amount of some units of rotation speed? I hope I am articulating my confusion correct....I just don't know what the 4000 is actually telling me. I'm almost in my mind trying to predict what the stick of butter is going to do given a certain rock it hits on the ground that changes its motion assuming this rock applies 4000 of pressure or maybe other values of pressure. thanks.