by unclejoe » Tue Apr 06, 2010 7:36 am
Is that 0.25 miles per second?
if so, simple.
0.25 = 1/4 ( one fourth ~ one quarter)
.25 mile per one second ~ 1 mile per 4 seconds.
one hour = 60 minutes. each minute = 60 seconds.
one hour = 60 minutes x 60 seconds = 3600 seconds.
3600 seconds divided by 4 seconds per mile = 900 Miles Per Hour
unclejoe