there are 60 seconds in a minute
and there are 60 seconds in an hour
so there are 60 x 60=3600 seconds in an hour.
so 2.5 x 3600 = 9000 miles per hour
which is very fast. 9000 miles is i believe about the distance from the uk to Australia. so 9000 miles an hour is about the same speed as travelling from the uk to australia in 1 hour
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25km/sec equates to 55,923.41 miles per hour.
1 hour = 3,600 seconds 1 mile = 5,280 feet 25 miles = (25 x 5,280) ft (25 miles) / (1 hour) = (25 x 5,280 ft) / (3,600 sec) = (132,000) / (3,600) = 36 and 2/3 ft/sec
16 miles per hour is 25 km(kila miles)
speed = ditance/time = .25 miles/9.7 sec = 0.0258 miles/sec there are 3600 seconds in one hour .0258 x 3600 =93.8 mph
At least 25 miles per hour for 10 miles.