I'm sorry but this makes no sense
146.6 feet per second.
About 41 feet per second.
About 4.55 feet per second.
If a car is moving at 100 feet per second, then it is traveling at 100 feet per second.
73.33 feet per second.
100 mph = 146.66 feet per second
6.1 mph = 8.95 feet / second.
8 mph = 11.7 feet per second.
5.583 feet per second.
90 feet
Mach 1 per second is 230,281,663 feet per second.
51.3333 feet per second