Question

State whether speed is a scalar or a vector quantity. Give reason for your choice

Answer 1

1. Quantities that have only magnitude are defined as scalar quantities.
2. Quantities that have both magnitude and direction are defined as vector quantities.
3. Speed has only magnitude.
4. If it had direction, then it'll be termed as velocity.
5. Quantities like speed are scalar quantities whereas quantities like velocity are vector quantities.
6. Hence, speed is a scalar quantity.