The following quantities relate to the rate of change of position. Which pair will always have the same magnitude?
A) Average speed and average velocity.
B) Average speed and instantaneous speed.
C) Average velocity and instantaneous velocity.
D) Instantaneous speed and instantaneous velocity.

Question

Quizplus · Accepted Answer

Instantaneous speed is the magnitude of instantaneous velocity. Both represent the rate of change of position at a specific moment, but speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction). Therefore, their magnitudes are always the same, even if their directions may differ.

The Following Quantities Relate to the Rate of Change of Position