25m/s=多少km/h 108KM/H等于多少M/s 4dm/min等于多少m/s
3个回答
1km/h=1m/3.6h
25m/s=25*3.6=90km/h
108KM/H等于多少M/s
=108/3.6=30m/s
4dm/min等于多少m/s
4*10/60=2/3m/s
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