Ummm... no. The velocities are completely different. The fired bullet will reach the ground first.

Depends on how high they were dropped/fired from. See theres this thing called terminal velocity and once an object reaches terminal velocity it cannot fall any faster than that. Ever. So if they were dropped/fired from high enough at the same time it is plausible that they can hit the ground at the same time.

YES YES YES, they will definitely hit at the same time... assuming no air resistance and therefore no terminal velocity for the bullet fired (as stated by the Ninja above). Horizontal velocity does not affect the vertical velocity due to gravity. If you only look at the vertical axis, the vertical motion of the two follow the exact same path.

They could if the angle was right, but you imply that the bullet is fired horizontally. You'll see answers saying "neglecting air resistance" which is silly - even Galileo took air resistance into account and at the speed of a bullet, air resistance is a very important factor. Due to the high speed, air resistance has quite an effect, and as soon as the bullet starts heading downwards, the force of air resistance acts in the opposite direction to the motion of the bullet, and if the bullet is heading even slightly downwards, the force of air resistance will act partly in a vertical direction far stronger than it does for the dropped bullet. Therefore, there is no question that the dropped bullet hits the ground first.

1) Jules Verne has the idea of a space canon to shoot a spaceship to the moon. Maybe it is not impossible that we achieve in the future some kind of canon that would be able to put something into orbit. "- Technical feasibility of a space cannon Gerald Bull and the Project HARP proved after 1961 that a cannon can shoot a 180-kg projectile up to 180 kilometers of height and reach 32 percent of the needed escape velocity. Additionally, during the Plumbbob nuclear test series, a 900-kg capping plate made of steel was blasted away. Myths say that it entered outer space because it did reach a speed of between two and six times the escape velocity, but engineers believe it melted in the atmosphere. This incident in 1957 gave rise to the Project Orion study of spacecraft design." Source and further information: http://en.wikipedia.org/wiki/From_the_Earth_to_the_Moon#Technical_feasibility_of_a_space_cannon 2) obviously, if you shoot the bullet straight up, it will take more time to fall to the ground than if you drop it. So the question would only make sense if you shoot it horizontally. 3) horizontally means that you are shooting at a right angle with the vertical. Here again, the theoretical trajectory without influence of gravity would be a straight line with a growing distance to the Earth surface, not a circle around the earth. So even an horizontal fired bullet would aim at a higher point that where you are firing and would take more time to get down for this reason. 4) "The bullets would only land at the same time if the earth was flat. The fired bullet takes a sub-orbital path and lands later. Even with a flat earth, the fired bullet has spin on it, causing it to resist being rotated downwards, so it has more vertical component of drag on it and again, it lands later. So what you need is a flat earth and a vacuum for both bullets to land at the same time." Source and further information: http://www.physicsforums.com/archive/index.php/t-152126.html

boy.... mathmaticians can come up with a lot of crap and this is right up there with what the **** are you talking about. do the test yourself but have medics handy in case you get frags in your legs. i would let you drop the bullet first and then shoot my gun. the gun fired bullet will hit first. so i say false.

no as soon as that bullet comes out of that gone its just so fast you would have to have the other bullet free falling before firing