A dart is fired horizontally from a dart gun and another is dropped from the same height. ?

Question

If air resistance can be neglected which dart will hit the ground first?

Answer 1

both hit the ground at the same time

see the example at the bottom of the link, both darts have the same vertical acceleration, and since vertical motion is independent of horizontal motion, both balls will hit the ground at the same time.

Answer 2

Both at the same time since this is what has been proved the force behidn the shot dart will propel it faster over a longer distance while the dropped dart will fall at 32f/s/s but have less distance 2 travel