JAMB Physics 1988 Question 3

Question 3

Scalars and Vectors

A lorry travels 10 km northwards, 4 km eastwards, 6 km southwards and 4 km westwards to arrive at a point T. What is the total displacement?

  1. A.6 km south
  2. B.4 km north
  3. C.6 km north
  4. D.4 km east
Show the answer and explanation

Answer: B (4 km north)

Explanation

East and west cancel (4 − 4 = 0). North–south: 10 − 6 = 4 km north.