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Speed is always relative.
250km / sec is very fast however when compared to normal everyday human things. It means that in just 1 second something has travelled 250,000 metres.
It helps to think of this relative to something else. The Earth is about 40,000km around the equator. So at this speed you could do a complete lap of our planet in 40,000 / 250 = 160 seconds (2 minutes 40 seconds). As you can see, this speed is fast.
However there are things which travel faster than this. Light travels about 1200 times as fast as this! Light could do a lap in about 0.13 seconds.
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How fast is 250 feet per second?
250 feet per second = 170.45 mph
How fast is 250km an hour in miles per second?
250 km per hour = 0.04315 miles per second.
How fast is 10 kilometers per second?
36000 km/h
If you ran 250 meters in 30 seconds what is your average speed?
-- 8 and 1/3 meters per second -- 250 meters per half-minute -- 500 meters per minute -- 30 kilometers per hour -- 720 kilometers per day -- 10,080 kilometers per fortnight
How fast is 6.4 kilometers per hour?
It is 106.66... metres per minute or 1.78 metres per second.
