1h = 3600s
1km/h x 1h/3600s = 0.00027778km/s
No. The value km/hr is a speed. The value km/sec/hour is acceleration (how many km/sec do you gain each hour).
3.5 (miles per second) = 20,277.73 km per hour.
65 (Km per hour) = 18.056 m per second.
72 (km per hour) = 2,000 cm per second.
5 km per second is equivalent to 18,000 km per hour. This is very fast, nearly 11,185 miles per hour. For context, the speed of sound is around 1,225 km per hour.
120 km per hour = 120,000 meters per hour = 331/3 meters per second
830000000 km/hour = 830000000/3600 km/second = 230555.6 km/second = 756,416,010.5 feet/second
One km = 1000m 1hour = 3600 seconds Therefore: 1423m per hour to Km per second = 1425 divided by 3600000= 0.004 km per second.
(145 km/hour) x (1 hour/3,600 seconds) x (1,000 meters/km) = 405/18 meters/second
to make cm to km, divide by 100000. = km/s to convert from per second to per hour, multiply by 360 overall: *360/100000
250 km per hour = 0.04315 miles per second.
1 kilometer per hour is 0.62 miles per hour or 0.91 feet per second.