The S.I. unit of speed (velocity) is
A) km/h
B) km/s
C) m/h
D) m/s
E) None of these choices is correct.

Question

Quizplus · Accepted Answer

The S.I. unit of speed is meters per second (m/s). This unit expresses the distance traveled per unit time in the metric system. Choice A (km/h) and C (m/h) both express speed in terms of distance traveled per hour, but the S.I. unit is meters per second. Choice B (km/s) is not correct either, as this unit expresses speed in terms of distance traveled per second, which is not commonly used in everyday situations. Therefore, the correct answer is D (m/s).

The S.I. Unit of Speed (Velocity) Is