Question

The SI unit of acceleration is ___.

• A. kilometers per hour per hour.
• B. meters per hour per hour
• C. meters per second per second
• D. kilometers per second per second.

Answer 1

The correct option is C

meters per second per second

We know acceleration is the rate of the change of the velocity.

Acceleration $a$ = $\frac{Velocity}{Time}$

SI unit of velocity = $m{s}^{-1}$

SI unit of time = $s$

SI unit of acceleration = $m{s}^{-1}÷s=m{s}^{-2}$