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2014-01-29T21:02:04+01:00
Bonsoir

27 km/h = 3600/27000= 0.1333m/s
10m/s = 0.010 x 3600 = 36 km/h
0.95 km/min = 0.95 x 60 = 57 km/h
1.5km/min = 1500/60 = 25 m/s