| **how does one figure out average speed???** | Gall
*Aug 31, 2002 11:24 AM* | | hello again,
if a person does/did 9 miles in 19 minutes what is the average speed of this?
what formula is used to figure this out?
thanks |
| **re: how does one figure out average speed???** | jaredhartman
*Aug 31, 2002 11:37 AM* | | Divide 60 by nineteen and multiply it by 9. That is your average spped of 28.4 miles per hour. |
| **distance divided by time...** | Tom C
*Aug 31, 2002 11:40 AM* | | so in your example 19 minutes as a fractional expression of an hour is 19/60 or.316666667. 9 divided by that is 28.42 mph. |
| **Or, how about FPS?** | Breakfast
*Aug 31, 2002 8:34 PM* | | I like to know feet per second.
9(miles) x 5280ft.= 47,520ft.
19 min. x 60 sec. = 1140 sec.
47,520ft. divided by 1140 sec. = 41.68 fps
41.68 fps x 3600 (secs in 1 hour)= 150,048ft.
150,048 divided by 5280 ft. (in a mile) = 28.418 mph avg.
I'm no math wizard so you get the long method. |
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