1 mile in 45 seconds is 80 mph. There are 60 seconds in a minute and 60 minutes in an hour; 60 * 60 = 3,600 seconds in an hour. 3,600 / 45 seconds = 80. And to cross-check: 80 mph * 5,280 feet in a mile = 422,400 feet per hour / 60 = 7,040 feet per minute / 60 = 117 1/3 feet per second * 45 seconds = 5,280 feet in 45 seconds.
At 60 mph you travel 1 mile per minute. At 80 mph it is 60/80 x 60 seconds = 45 seconds.
Extremely fast: 1 hour = 3600 seconds speed = distance/time = 1 mi / 45 s = 1/45 mi/s = 1/45 mi/s x 3600 s/hr = 3600/45 mi/hr = 80 mph!
66.7 mph
12.121212 seconds
Well, there are 5280 feet in a mile and 3600 seconds in a hour. So, 5280 feet times 45 miles equals 237600 feet. Then you divide 237600 feet by 3600 seconds, to get 66 feet per second.
80 mph
5.65 miles per hour for one mile.
As speed as
If you run a mile in 4 minutes and 45 seconds you are averaging 12.63 miles per hour.
45 seconds.
There are 60 seconds per minute and 60 minutes per hour; therefore, there are 60 X 60 = 3600 seconds per hour. The stated rate is 1/45 mile per second. 1/45 X 3600 = 80 miles per hour.
In that case, your speed is precisely 1 mile per 80 seconds. If you like, you can transform that expression in order to describe the speed in terms of other units. Examples include: -- 0.75 mile per second -- 45 miles per hour -- 1,080 miles per day -- 120,960 furlongs per fortnight
45 seconds.
45 mph (5280 feet/1 mile)(1 hour/3600 seconds) = 66 feet per second
10
It will take 45 seconds.
45 seconds.