Physics

Physics

Problem

Which one of the following physical quantities is a vector? a) Distance\text{Distance} b) Magnitude of displacement\text{Magnitude of displacement} c) Average velocity\text{Average velocity} d) Speed\text{Speed}
Intuitive explanation

A vector has both magnitude and direction, while a scalar has only magnitude. The key is to identify which quantity requires you to specify a direction to fully describe it—not just "how much," but "how much in which direction." Think about whether the quantity would change if you reversed its direction, or whether direction matters for how it combines with other quantities.

Intuitive explanation

A vector has both magnitude and direction, while a scalar has only magnitude. The key is to identify which quantity requires you to specify a direction to fully describe it—not just "how much," but "how much in which direction." Think about whether the quantity would change if you reversed its direction, or whether direction matters for how it combines with other quantities.

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