830000000 km/hour = 830000000/3600 km/second = 230555.6 km/second = 756,416,010.5 feet/second
30 kilometers per hour = 27.34 feet per second.
(Feet per second x 1.1 = km/h). So, 500 fps x 1.1 = 550 kilometers per hour.
222 feet per second equates to 243.596 kilometers per hour.
If you travel at 90 kilometers per hour, your speed would be approximately 82.6 feet per second. This conversion is based on the fact that 1 kilometer is equal to 3280.84 feet and 1 hour is equal to 3600 seconds.
60 kilometers (km) per hour is equal to about 54.7 feet per second.
400 miles per hour is 586.7 feet per second or 643.74 kilometers per hour.
Approximately 102.3 mph at 150 feet per second.
about 52 1/2 feet
The speed of 140 kilometers per hour is equal to 86.99 miles per hour. It is also equivalent to 1.45 miles per minute or 127.6 feet per second.
25 feet/second, 25 miles/hour; 25 meters/second, 25 meters/hour, 25 kilometers/hour: In science, we would use the metric/SI units.
45 kilometers per second are 162,000 kilometers per hour and that are 100,662 miles per hour.
72 kilometers per hour = 2,000 cm per second.