Originally Posted by
dubbleyew eight
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you are wrong
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the gravitational attraction acts on every particle of the two balls at the same rate of influence.
so it doesn't matter whether you have a ball full of nothing or a ball full of concrete, every particle of both balls is under the same influence.
you don't get any more influence exerted on the concrete ball.
So a balloon filled with air dropped from the Eiffel Tower or even my garage bench would fall at the same rate as a balloon filled with concrete?