Quote:
Originally Posted by Ken G
Your answer is a good one, but it is really only part of the story. You have explained why a brick falls the same if broken in two pieces, but that's not anything unique to gravity. What's so special is that a brick falls the same as a bucket of water, or an iron bar.
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Do you mean I should word it more like "every gram in a 10kg brick feels the same acceleration as every gram in a 1kg iron bar (at a given location in a given gravitational field)"?
Or is there something "deeper" I'm missing? (Sorry, I don't understand what's so special about the other cases you mention).
Thanks,