"you are kidding, I hope"
Ask your average person what would fall faster, a 10lb weight or a 2lb weight. Then ask them which would hit the ground first between a dropped bullet and a bullet fired horizontally.
Now, what do you think the answer to your question might be?
well, that 10lb-2lb question is a trick question.
insufficient data.
assuming air resistance is not a factor, the 10"lb" weight would hit the ground sooner than the 2"lb" weight by an immeasurably infinitessimal amount of time, as the gravity constant is actually a sum of those of the masses in question (earth's and that of the object)
but, yes, I see your point.
sickening.