90km/h等于多少m/s

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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
1km/h=1000m/3600s=5/18m/s
90km/s=90*5/18=25m/s

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