Rates, SM-Bank 081 Convert 72 km/h into m/s. (2 marks) Show Answers Only \(18\ \text{km/hour}\) Show Worked Solution \(72\ \text{km/h}\) \(=72\ 000\ \text{m/h}\) \(=\bigg(\dfrac{72\ 000}{60\times 60}\bigg)\ \text{m/s}\) \(=20\ \text{m/s}\)