Multiply mph by 0.00045 to get km per second.
This is not an answer, but if I go 6 feet in one second what is my MPH?
0.51 km per second = 1,140.84 mph
7.5 kilometers per second = 16,777.02 mph
7 meters per second is 25.2 km/h
Answer: 30 km/h = 18.6411 mph
Here it is:mph x 0.000447 = km per second
600km per second = 1,342,161.78 mph
14 kph = 12.76 feet per second
900 kilometers per hour = 250 meters per second.
2 km/s is about 4,473.9 mph
54 km per second is equal to 120,794.56 mph
(mph x 0.45 = meters per second) So, 93 x 0.45 = 41.85 meters per second.
2.2 meters per second = About 5 mph (4.92125984)