Originally Posted by
pacificaslim
I suspect what he is getting at will be clearer to you if you reverse what he is saying and see if you think that is correct: i.e. if you don't believe the speed of a falling body is independent of its weight, do you feel it is dependent on its weight?"
Of course it is! Change the weight with all else being equal under normal earth conditions and it will change the rate it accelerates, that is unless the surface area of the object is zero. Check the formula Shimagnolo posted earlier and you can see all the variables that affect the acceleration of an object - one of these is mass.