Question

What is the unit of angular acceleration in $SI$ system?

• A. $N \, kg^{- 1}$
• B. $m \, s^{- 2}$
• C. $rads^{- 2}$
• D. $m \, kg^{- 1} \, K$

Answer 1

Answer: (C)

From the formula of angular acceleration we know that
$Angularacceleration=\frac{Angular \, velocity}{Time}$
Putting the appropiate units we get
Unit $=\frac{rad}{sec^{2}}$