2007-08-31 18:48:47 · 13 answers · asked by ebillar 1 in Science & Mathematics ➔ Mathematics
5 miles = 5 x 5280 ft
1 hour = 3600 seconds
5 miles / hour
= 5 x 5280 / 3600 ft / sec
= 7 . 33 ft / sec (to 2 decimal places)
2007-09-04 11:08:28 · answer #1 · answered by Como 7 · 2⤊ 0⤋
To do a conversion problem like any other, just treat the measurements like variables:
5 miles per hour can be written as 5 miles / 1 hour
Now all we need to do is multiply by certain fractions until we get our correct unit.
So let's start with the seconds:
5 miles/hour * 1 hour / 60 minutes >>> As there are 60 minutes in one hour the second fraction is equivalent to 1
5 miles / 60 minutes * 1 minute / 60 seconds >>> Again 60 seconds in one minute, thus 1
5miles / 3600 seconds
Now we do the top, distance:
5 miles / 3600 seconds * 5280 ft / 1 mile >>> Again 5280 feet in one mile, thus 1
5 * 5280 feet / 3600 seconds
And when we simplify we get:
22 feet / 3 seconds or 7 and 1/3 feet per second
2007-09-01 01:57:58 · answer #2 · answered by AibohphobiA 4 · 1⤊ 0⤋
There are 5,280 feet in a mile.
Miles per hour converts to 5, 280 X 5 (MPH) = 26,400 feet per hour.
Sixty minutes in an hour, so we divide by sixty to get minutes
26,400 / 60 = 440 per minute.
There are sixty second in a minute, so we divide by sixty again to get:
7.3 ( seven and a third) feet per second.
Hope that helps!
2007-09-01 01:58:53 · answer #3 · answered by Aleph Null 5 · 1⤊ 0⤋
5 miles = 26400 feet
26400 feet per hour = 440 feet per minute. or 7.33 feet per second.
26400 divided by 60 divided by 60
2007-09-01 01:58:48 · answer #4 · answered by ToolManJobber 6 · 1⤊ 0⤋
1 mile = 5280 feet
1 hr = 60 minutes x 60 seconds = 3600 seconds
5 miles is 26400 ft
26400/3600 = 7.333333 ft/second
2007-09-01 01:55:26 · answer #5 · answered by Thor 3 · 1⤊ 0⤋
5 miles = 5*1760*3 feet
1 hour = 1*60*60 seconds
in 1 hour or in 60*60 or 3600 seconds = 5*1760*3 feet
in one second = 5*1760*3/3600 feet
22/3 or 7 and 1/3 feet per second
2007-09-01 01:58:27 · answer #6 · answered by Indian Primrose 6 · 2⤊ 1⤋
5 mi/hr * 5280 ft/mi * 1/60 hr/min * 1/60 min/sec = 5*5280/(60*60) = 26400/3600 = 7 1/3 feet/sec
Hope this helps!
2007-09-01 01:53:17 · answer #7 · answered by disposable_hero_too 6 · 2⤊ 0⤋
5 miles / 1 h | 5280 ft / 1mile | 1 h/ 60 min | 1min / 60s
Multiply across the top = 26400
Multiply across the bottom =3600
Divide top by bottom = 7.33
Cancel Top and bottom units = ft / sec
7.33 ft / sec
2007-09-01 01:58:21 · answer #8 · answered by Anonymous · 1⤊ 0⤋
its 7.33 ft per sec.
1 mile = 5280 feet.
so 5 miles = 26400 feet
26400 / 60 (min) = 440 feet /min
440/60 (sec) = 7.33 ft.
ans: 7.33 ft / sec
2007-09-01 01:57:32 · answer #9 · answered by Vid R 2 · 2⤊ 0⤋
5 mi/hr x 5280 ft/mi x (1/60) hr/min x (1/60) min/sec = 7.33 ft/sec
Dimensional analysis!
2007-09-01 01:53:54 · answer #10 · answered by Bloblobloblob 3 · 2⤊ 0⤋