Please show some working, I need to know how to do it.
Thanks.
2007-10-21 22:40:48 · 11 answers · asked by Hermione Granger 4 in Science & Mathematics ➔ Mathematics
1km = 1000m
1 hour = 60 minutes = 3600 seconds
72km/hr
= 72000m/3600s
= 20m/s
2007-10-21 22:44:55 · answer #1 · answered by gudspeling 7 · 6⤊ 0⤋
First we convert 72km/h to m/h
You will do 1000m every km
so 72km/h = 72000m/h
Then convert into m/s
there will be 3600s in an hour (60 * 60)
so 72000/3600 = 20 m/s
basically you divide by 3.6 (1000/3600)
2007-10-21 22:46:33 · answer #2 · answered by Wooly 4 · 1⤊ 0⤋
1 mile = 1.6 km
1 hour = 60 minutes
1 minute = 60 seconds
72 km / 1.6 km = 45 m
60m x 60s = 3600 s
45m/3600s
let's reduce: 1m/80s
2007-10-21 22:54:34 · answer #3 · answered by ru4real130 2 · 0⤊ 5⤋
H And M At
2016-12-14 11:38:39 · answer #4 · answered by hariwon 4 · 0⤊ 0⤋
= 72000 m/h
= 72000 / 3600 m/s
= 20 m/s
2007-10-22 04:59:32 · answer #5 · answered by Como 7 · 0⤊ 0⤋
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72 km/h (1000m/km) (1h/ 60min) (1 min/60s)
= 20 m/s
2007-10-21 23:31:07 · answer #6 · answered by N!tsuj 2 · 0⤊ 0⤋
72 km/hr/3.6= x m/s
2007-10-21 22:44:10 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Not sure how to answer this one
2016-07-30 05:42:34 · answer #8 · answered by ? 3 · 0⤊ 0⤋
It depends..
2016-08-26 03:54:03 · answer #9 · answered by Anonymous · 0⤊ 0⤋
72km = how many centimeters
2015-11-05 10:48:01 · answer #10 · answered by mary 1 · 0⤊ 0⤋