27,538 km/sec = 323,125.984 million ft/hr (rounded)
27,358 km/hr = 24,932.6 ft/sec (rounded)
2500 (feet per second) = 157,173.782 kilometers
45 kilometers/second (1 mile/1.609 kilometers)(5280 feet/1 mile) = 147,669 feet per second ===================
1.26 kilometers is about 4,133.9 feet.
55 square meters = 592.02 square feet (rounded)
30 kilometers per hour = 27.34 feet per second.
0.024384 kilometers per second
222 feet per second equates to 243.596 kilometers per hour.
(Feet per second x 1.1 = km/h). So, 500 fps x 1.1 = 550 kilometers per hour.
830000000 km/hour = 830000000/3600 km/second = 230555.6 km/second = 756,416,010.5 feet/second
A kilometre is a unit of distance. Feet per second is a unit of speed. The two units are therefore incompatible.
At 60 kilometers per hour, the velocity is approximately 16.67 meters per second. So in one second, the distance traveled would be 16.67 meters, which is equivalent to approximately 54.79 feet.