Example: air traffic controller
TvDicaI StODD ina Distances - Driving Test
20 mph (32 km/h) 30 mph (48 km/h) 40 mph 12m (64 km/h) 50 mph 15m (80 km/h) 60 mph 18m (96 km/h) 70 mph 21 m (112 km/h) = 12 metres (40 feet) or three car lengths
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