Explanation:
so, what is the distance now ?
21.62 km or 22.62 km ?
the speed was 36 m/s.
for 21.62 km
21.62 km = 21,620 m
21,620 / 36 = 600.5555555... s
for 22.62 km
22.62 km = 22,620 m
22,620 / 36 = 628.3333333... s
so, it took the train either
600.5555555... seconds = 600 5/9 seconds
or
628.3333333... seconds = 628 1/3 seconds
if you need minutes divide that by 60.
if you need hours divide that by 3600.
now to transform 36 m/s into miles/hour.
1 hour = 3600 seconds
1 mile ≈ 1609.344 meters
so, as first step
36 m/s to mi/s :
36/1609.344 mi/s = 0.022369363... mi/s
the second step
0.022369363... mi/s to mi/h
0.022369363... × 3600 = 80.52970651... mi/h
the speed is 80.52970651... mi/h.
Answer:
See below
Explanation:
rate * time = distance
36 m/s * t = 21620 m ( converted km to m)
t = 600.56 seconds = ~ 10 minutes = 1/6 hr
21.62 km = 13.43 miles
13.43 miles / ( 1/6 hr ) = 80.6 mi/hr
