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2010-01-11T14:28:39+01:00
5min = 300s
300s : 3s =100s
100s * 5 = 500m
11 4 11
2010-01-11T14:40:10+01:00
V = s/t
V = 5m/3s = 5/3m/s

5 min = 60s * 5 = 300s
5/3m/s * 300s = 1500ms/3s = 500m
13 4 13