At two kilometers he opened fire into the target area.

Somebody on an airplane can be moving at several hundred kilometers per hour, but they say, "I am just sitting here."

"Target two at six hundred kilometers, mark seven oh nine."

The sun is also moving at several hundred kilometers a second around the galaxy, and so on.

But light travels at 300,000 kilometers in a second, almost a million times the speed of sound.

This does not have to be replaced at 105,000 kilometers.

We entered such a field at a million kilometers out, more or less.

And now she was getting used to flying at five kilometers per second in an aluminum can.

Tom turns and walks south at 3 kilometers per hour.

We were still moving at better than three kilometers a second, but of course you couldn't tell that with nothing around to compare.