Question

6. Which of the following are not examples of vector?
A. The velocity of a baseball thrown from first base to second base
B. The friction force acting against a pulled sled C. The mass of zebra D. The direction of a car heading from Addis Ababa to Bule Hora

Answer 1

Answer: C and D.

Explanations:
- A: velocity is a vector (has magnitude and direction).
- B: friction is a force, hence a vector.
- C: mass is a scalar (only magnitude).
- D: a bare "direction" gives no magnitude (it can be represented by a unit vector, but as stated it lacks magnitude), so it is not a full vector quantity.