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Practice mode Time and Distance

A sprinter runs at a steady 15 m/s. What is this speed in km/h?

Correct answer B. 54 km/h

Explanation

Since 1 m/s equals 3600/1000 km/h, multiply m/s by 18/5 to get km/h. So the sprinter runs at 15 × 18/5 = 54 km/h.

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