Question

The SI unit for speed is ______.

Answer 1

Speed:

1. Speed is the rate of change of displacement.
2. The mathematical expression is $\text{Speed}=\frac{\mathrm{Displacement}}{\mathrm{Time}}$.
3. The unit of displacement is meter (m) and the unit of time is second (s), so the unit of speed is meter per second or $m/s$.