Question

5
what is the si unit for acceleration?

Explanation:

Acceleration is defined as the rate of change of velocity. Velocity has SI unit of meters per second ($m/s$), and time has SI unit of seconds ($s$). So acceleration ($a$) is $\frac{\text{change in velocity}}{\text{change in time}}$, so its SI unit is $\frac{m/s}{s}=m/s^2$ (meters per second squared).

Answer:

meters per second squared (or $m/s^2$)