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Joanna drove a car at 30km/hr. What is the speed in m/s?
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Joanna drove a car at 30km/hr. What is the speed in m/s?

User HSG
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6 votes
8.33 m/s
Explain:

If you understand what 1 km = 1000 m and 1 hr = 60*60 seconds signify, you already know what they mean. If you translate 1000 m/ 3600 s to km/hr, you'll get 5 m/ 18 s, which you can multiply by 30 to get (30 x 5)/18 = 8.33 m/s.
User Lareau
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