MDCAT Physics MCQ #3652

A student needs to specify the direction of a force in the xy-plane without changing its magnitude. Which mathematical tool should be used?

MDCAT Physics MCQ #3652

  1. Question 1

    Q1. A student needs to specify the direction of a force in the xy-plane without changing its magnitude. Which mathematical tool should be used?

    • A) Scalar vector
    • B) Unit vector
    • C) Position vector
    • D) Null vector

    Answer: Unit vector

    Explanation: A unit vector is used only to specify direction; its magnitude is exactly one. Option C is wrong because unit vectors are dimensionless.