60 900 a = ......... ha 49 200 a = ..........ha kolejka porusza sie z prędkością 29 km / h prędkośc kolejki wyraż w m / s bardzo proszę o pomoc
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60 900 a = 609ha
49 200 a = 492ha
29 km=29000m
h=3600s
29000/3600=8.0=ok. 8.1 m/s
1ha = 100a
60 900 a = (60 900 : 100)ha = 609ha
49 200 a = (49 200 : 100)ha = 492ha
29km 29 000m 290m
--------- = ------------- = ------------ = 8 i 2/36 m/s = 8 i 1/18 m/s
1h 3 600s 36 s