90km/h等于多少m/s
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90km/h等于多少m/s
90km/h等于多少m/s
90km/h等于多少m/s
因为1km/h=1000m/3600s=5/18m/s,
所以,90km/h=90×5/18m/s=25m/s.
90km/h等于25m/s
25m/s
把km换成米,90000m,把h换成3600s,所以用90000除以3600即可
90km/h=(90*1000)m/(60*60)s=90000/3600 m/s=25 m/s
90km/h=25m/s