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NDA 2020 GAT · General Knowledge · Units and Measurements · easy

Which one of the following is a vector quantity?

Single correct option

Which one of the following is a vector quantity?
  1. A. Displacement
  2. B. Speed
  3. C. Work
  4. D. Energy
Show answer and solution

Answer: (A) Displacement

A vector has both magnitude and direction. Displacement is the shortest directed distance from the initial to the final position. Speed, work and energy have magnitude only and are scalars. Work is a dot product of two vectors, which makes it scalar, a frequent trap.
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Original question written in the NDA 2020 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake