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JAMB Physics 1981 Question 23

Question 23

Scalars and Vectors

An aircraft travelled from Calabar to Kano as follows: It flew first to Ilorin covering a distance of 300 km, 30° West of North, and then flew 400 km, 60° East of North to Kano. What is the resultant displacement?

  1. A.567 km
  2. B.410 km
  3. C.594 km
  4. D.500 km
  5. E.600 km
Show the answer and explanation

Answer: D (500 km)

Explanation

The two legs are 30° + 60° = 90° apart, so the resultant is √(300² + 400²) = 500 km.