Its a force and therefore has no speed or acceleration itself. And the force of gravity is proportional to the size of an object.
Gravity has to have acceleration, or else it would have no force. If I push you (exert force on you), and you move back, does that mean that you cause the movement, not the force of my push? Of course it was the push (assuming I could push you, since I don't know how big you are
Gravity is the same way. It accelerates matter at a set rate (on earth, 9.8m/s/s, in other words, for every second an item falls, its speed is increased by 9.8m/s.
And yes, the weight of an object (I'm assuming you meant weight when you said size), does not effect how fast it falls.
Does anyone remmeber who invented the machine that measured the actual power of gravity, and what it was called?
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