One mile per hour is equal to 0.447 meters per second.
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Nine feet in one second = 6.14 mph
27 mph = 724.2048 m/min .... (1 mph = 26.8224 meters/min)
75.2 meters per second is faster than 256 km/h.75.2 meters per second = 168.2 mph256 km/h = 159.1 mph
(1/0.18) = 5.555 meters per second (rounded)
per second per second is taken with the context of how an object is changing its acceleration. An object accelerates by speeding up or slowing down. If an object speeds up, it could speed up at a rate of 5 meters per hour, let's say, every second. So after one second, its speed is 5 mph; after two seconds, its speed is 10 mph and so forth. If an object's speed is increasing at 5 meters a second, then its speed is 5 meters per second the first second; 10 meters per second the second second and so forth. We would say the object's acceleration is 10 meters per second / per second.AnswerIt has to do with speed,the time an object falls from a given height is calculated in seconds per second( it fell in less than a second)