Hr/60 mins/60 sec
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cm/sec, yes? ok, divide by 100 to go from cm to m. then multiply by 3600 to go from sec to hr
(66 km/sec) x (3,600 sec/hr) = 237,600 km/hr
(1 km/hr) / [ (1.609344 km/mi) x (3,600 sec/hr) ] = 0.0001726 mi/sec (rounded)Multiply [Km/hr] by 0.0001726 to get [mi/sec] .Or divide it by 5,793.6 .
To convert seconds to hours simply divide the number of seconds by 3600.
73.5 km/hour = 73500 meters/hour = 73500/3600 meters/sec = 20.4166 meters/sec