1. The problem statement, all variables and given/known data Using Newtons second law, if an object with mass M is free falling (the only F acting upon it is its own weight), calculate the object's acceleration. What would happen to its acceleration should its mass duplicate? 2. Relevant equations F=ma 3. The attempt at a solution So since the object is free falling its acceleration is = to g. And that should be my answer right? Could I just do F=mg mg=ma g=a? or is that just wrong? then if the objects mass duplicates its acceleration stays the same because its constant? so the objects mass is irrelevant to its acceleration, right??