300 km is a measure of distance, not of speed. So 300 km does not move at any speed.
300km
upto 300km
300km/h - 400km/h
The C8 spyder has a top spead of 300km/h
it can move up to 300km an hour
the 138-kilo machine could hit a top speed of 300km/h
they can run about 40 miles per hour.
almost 300km
3dm, 3000cm, 3000m, 300km
it takes 12000 minutes to walk on the moon by 300km
300km/h but can go more than that (over 350km/h) but scary to drive like that.. 217 mph
The cheetah is the fastest animal in the earth, he can run at 123km per hour, but the hawk can reach 300km per hour in his "air diving".