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is there a formula or something?

2007-09-12 15:05:16 · 9 answers · asked by Anonymous in Science & Mathematics Mathematics

9 answers

30 mph
=30*5280 ft/hour [1 mile=5280 feet]
=30*5280/60*60 ft/sec {as 1 hour=60*60 sec]
=44 ft/sec

2007-09-12 15:17:06 · answer #1 · answered by alpha 7 · 0 0

It is very simple. See the table below.
12 inches = 1 foot
3 feet = 1 yard
220 yard = 1 furlong
8 furlong = 1 mile
This shows that one mile = 5280 feet
(1 x 8 x 220 x 3 = 5280)
Now, let us convert "30 miles / hour" into feet and second.
(30 x 5280) / 3600= 158400 / 3600 = 44 feet per sec
Hence, 30 mph = 44 ft/sec
=====================

2007-09-12 15:18:19 · answer #2 · answered by Joymash 6 · 0 0

There are 3600 seconds per hour.(60 per minute multiplied by 60 minutes in an hour).
Now convert 30 miles into feet.
I mile is equal to 5280 feet, so 30 miles = 158400 feet.
Divide 158400 by 3600 = 44 feet per second

2007-09-12 15:21:14 · answer #3 · answered by Anonymous · 0 0

Well, lets see.
There are 5280 feet in a mile.
There are 3600 seconds in an hour.
5280 X 30=158400(feet)
158400/3600 = 44 feet per second.

It's the old school way, but I believe it's right...???

2007-09-12 15:17:38 · answer #4 · answered by 'ol wise oracle 5 · 0 0

Multiply by equivalents units.
30miles/hour
= ((30 mile) / (1 hour)) * (5280 feet / 1 mile ) * (1 hour / (60 * 60) second) -- (mile and hour are gone after cancelling)
= ((30 * 5280) feet) / (3600 second)
= 44 feet/second

2007-09-12 15:17:58 · answer #5 · answered by tancy2411 4 · 0 0

find how many feet my hour which is 30*1760*3

then divide by 3600

so 30/3600=1/120

1/120*3=1/40

then 1760/40
=176/4
=88/2
=44
hope that helps

2007-09-12 15:25:38 · answer #6 · answered by GOLD-FLAW 2 · 0 0

30miles/hr x 5280/60/60=44fps OR:

30x5280=158,400feet per hour.

158,400/60 = 2,640 feet per minute

2,640/60 = 44 feet per second

2007-09-12 15:17:39 · answer #7 · answered by daleabono 2 · 0 0

multiply miles per hour by 1.467 to obtain feet per second

2007-09-12 15:19:22 · answer #8 · answered by jeff 2 · 0 0

1 mile = 5280 ft
1 hour = 3600 seconds
30 m.p.h. = (30 x 5280) / (3600) ft / sec
30 m.p.h. = 44 ft / sec

2007-09-15 04:19:19 · answer #9 · answered by Como 7 · 0 0

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