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but different masses will all fall at different rates of speed.
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LOL
Take one clay ball of 100 grams.
Drop it from wherever you want.
Take two clay balls of 100 grams each.
Drop them from same point.
Same speed of fall.
Take three clay balls of 100 grams each.
Again, same speed of fall.
Join two clay balls into one.
Will they fall at the same speed as two separate balls?
Ofcourse.
There wasn't difference in fall speed when they were separated,
so it won't be if you join them. There is no difference in acceleration and speed.
Drop one clay ball of 100 grams, and two joined balls of 2 x 100 grams as one.
Will they fall at same speed, or ball of 200 grams will fall faster?
Remember, 2 x 100 grams fall the same speed whether you join them or not.
So, 3 x 100 grams will also fall at the same speed.
Join them or not, it will change nothing.
Now, take one ball of 100 grams and divide it into two of 50 grams.
Or into 5 of 20 grams.
Or into 100 of 1 gram.
Each of those grams will fall at the same speed, joined with others or not.
Same goes for milligrams, and so on...