Solomon six shooter fires a gun if the bullet leaves the barrel of the gun with velocity of 500 meters per second how long will it take to travel 2000 meters?

That's going to depend a lot on what direction he points the gun when he fires it.For example, if he's holding it level and fires parallel to the ground, then it would travel 2,000 meters in (2000/500) = 4 seconds after the shot.  BUT . . . in order to accomplish that, the muzzle would have to be at least 78 meters (about 255 feet) up off the ground, because anything that's beingattracted by gravity falls about 255 feet in 4 seconds, and if the bullet hit theground sooner than that, then it would stop traveling horizontally.If he points the gun straight up, then the bullet reaches 2,000 feet above the muzzle in 4.17 seconds after the shot.  It keeps going up, tops out when it runs out of speed, starts falling, and returns to 2,000 feet again at about 98 seconds after the shot.  (At 102 seconds after the shot, it is hoped that Solomon has moved out of the way, because that's when the bullet returns to the ground, at the same speed of 500 m/s that it had when it was fired straight up.  That speed is a little over 1,100 mph, believe it or not, and that little tiny piece of lead falling out of the sky is dangerous.  Solomon would not be wise to stand there and look up.)