1 year ago
Last edited at 3:17PM on 12/19/2012
No. You have given too little info to give a mathematical answer. But a gun fired from a table (3 ft off the ground) with the barrel parallel to the ground will take from one to several seconds to travel the mile (or so) it can travel. BUT, the bullet dropped at your feet will be there in about 1/3 of a second.
Yes, both will fall at exactly the same rate and both will hit the ground at exactly the same time. Air resistance in the vertical direction is exactly the same so it works the same in air and a vacuum. Horizontal velocity has no effect on the pull of gravity.