Question

Distinguish  between  speed  and  velocity

SCERT Class 9 Telangana, Physical Science Ch 2 Motion

Answer 1

Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called "speed", being a coherent derived unit whose quantity is measured in the SI (metric) system as metres per second (m/s) or as the SI base unit of (m⋅s−1).