Which of the following quantities is a velocity? a 15 m/s2 b 3 g/L in weight c 10 km/hr eastward d 25 m/s
The correct answer is d) 25 m/s.
Velocity is a vector quantity and represents the rate of change of displacement with respect to time. It includes both magnitude (speed) and direction.
In this case, 25 m/s represents both magnitude (25 m/s) and direction (unspecified in the options). Therefore, it is the velocity. The other options do not have the correct units, or are missing direction information, making them not velocity.