(a) How many miles per hour is this?
(b) How many feet per second?
Please show me how to work this problem out. Thanks
2007-01-18 00:23:37 · 4 answers · asked by Heavy Metal 3 in Science & Mathematics ➔ Mathematics
1 mile = 1.609 km
a) 100 km/hr is 62.15 miles/hr
b) 1ft = 0.0003048km
and 1hr = 3600 seconds
so 100 km/hr = (100/0.0003048)/(3600)=91.13 ft/sec
2007-01-18 00:50:52 · answer #1 · answered by Anonymous · 0⤊ 0⤋
100 kph * 0.62 miles/km = 62 mph
100 kph * 0.62 miles/km * 5280 ft/mile * 1 hr/3600sec = 91 ft/sec
2007-01-18 00:31:17 · answer #2 · answered by gebobs 6 · 0⤊ 0⤋
I think its 161mph and 91 ft/sec
1 hr = 3600 sec
1 km = 1000 m
1km=3250 ft
3280 x 1000= 328000
100 x 328000 ft / 3600 - 91 ft/ sec
1 km = .621 miles
100 / .621 mi = 161mph
2007-01-18 00:29:40 · answer #3 · answered by ~Zaiyonna's Mommy~ 3 · 0⤊ 2⤋
100000 / 1,609=62,15 miles/h
2007-01-18 00:48:45 · answer #4 · answered by iyiogrenci 6 · 0⤊ 0⤋