The 100.0m dash record is 9.780 s. What's the avrg speed in ft/s & mi/h?

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Please explain your process so I can learn how to do this.
Thanks

2006-09-04 05:01:46 · 3 answers · asked by James A 2 in Science & Mathematics ➔ Physics

1 m = 3.281 ft

328.084 ft / 9.78 s = 33.546 ft/s

1 mi = 5280 ft
1 h = 3600 s

33.546 ft/s = 22.872 mi/h

2006-09-04 05:22:01 · answer #1 · answered by trystanq 2 · 0⤊ 0⤋

100.0 m/9.870secX3600 sec/1hr

X 1 mile /1609 m = 22.8 mph

2006-09-04 12:11:04 · answer #2 · answered by eric l 6 · 0⤊ 0⤋

Sorry I wasn't ever any good at math.

2006-09-04 12:04:35 · answer #3 · answered by guitardan 5 · 0⤊ 0⤋