Convert 108 km/h to metres per second

Question

Solve in your head. What is 108 km/h in metres per second? Aim: under 5 seconds.

Accepted Answer

One kilometre is 1000 metres and one hour is 3600 seconds, so km/h to m/s means dividing by 3.6: \frac{108}{3.6} = \frac{1080}{36} = 30 	ext{ m/s}. Takeaway. km/h to m/s is always divide by 3.6. Keep the anchors handy: 36 	o 10, 72 	o 20, 108 	o 30 m/s, each extra 36 km/h adds 10 m/s.

Convert 108 km/h to metres per second

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