45 ACP (auto) has a muzzle velocity of anywhere from 830-1100 fps, depending on the load. There ARE other .45 cartridges.
I'm going to guess that you mean, "How fast will the bullet from a .45 caliber pistol travel?" If so, the bullets travel between about 800 feet per second and 1100 feet per second, depending on various factors.
If you mean "farther" yes, generally speaking, a .22 will travel further than a .45. The .45 is a much heavier bullet and loses velocity at a faster rate.
It depends on the specific cartridge and the length of the barrel of the gun, but in general, usually between about 800 and 1100 feet per second.
4000 fps +
The answer varies, depending on WHICH .45 caliber bullet, and which weapon fires it. In the case of the 1911A1 pistol, in .45 ACP, firing a standard 230 gr. round nosed bullet, when elevated to 33 degrees, the bullet will travel 2096 ft. Not accurately, but that is it's maximum RANGE.
as fast as chuck norris' fist duhhh
@ 2000 FPS
Between 800 and over 4,000, depending on which bullet you had in mind.
about 36km
@890 mps
In the case of the 1911A1 pistol, in .45 ACP, firing a standard 230 gr. round nosed bullet, when elevated to 33 degrees, the bullet will travel 2096 ft. Not accurately, but that is it's maximum RANGE. When fired from a carbine or submachinegun, the range may be greater.
It can be either. Some weapons fire sub-sonic ammunition, some super-sonic.