zamień na km/h (z obliczeniami)
a)15 m/s
b)35 m/min
c)13 m/s
d)180 m/min
1 km= 1000 m 1h= 60 min = 3600 s
15 m/s= 15÷1000 × 3600 =54 km/h
35 m/min= 35÷1000×60 = 2,1 km/h
13 m/s = 13÷1000×3600 = 46,8 km/h
180 m/min= 180÷1000×60 = 10,8 km/h
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1 km= 1000 m 1h= 60 min = 3600 s
15 m/s= 15÷1000 × 3600 =54 km/h
35 m/min= 35÷1000×60 = 2,1 km/h
13 m/s = 13÷1000×3600 = 46,8 km/h
180 m/min= 180÷1000×60 = 10,8 km/h