EASA NAV(A)basic
57. An aircraft travels 100 km in 56 minutes. What is its groundspeed?
Answer
107 km/h
Explanation
Fifty-six minutes is $56/60$ hours. Thus $100÷(56/60)≈107$ km/h. **Key takeaway:** Divide distance by elapsed time in matching units. **Glossary:** Groundspeed: speed relative to the ground.
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