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Practice mode Time and Distance

A motorbike is moving at 72 km/h. What is its speed in metres per second?

Correct answer B. 20 m/s

Explanation

Since 1 km = 1000 m and 1 hour = 3600 s, multiply km/h by 5/18 to get m/s: 72 × 5/18 = 20 m/s.

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