Question

The unit of angular acceleration in the SI system is

• A. $Nk{g}^{-1}$
• B. $m{s}^{-2}$
• C. $rad{s}^{-2}$
• D. $mk{g}^{-1}K$

Answer 1

Answer: (C)

Angular acceleration $=\frac{\text{ Angular velocity }}{\text{ Time }}=\frac{rad}{s^2}$