km/h=?m/s?

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km/h=?m/s?km/h=?m/s?km/h=?m/s?1000m/3600s≈0.28m/s

km/h=?m/s?
km/h=?m/s?

km/h=?m/s?
1000m/3600s≈0.28m/s