Question

The dimensional formula of angular impulse is :

• A. [M L–2 T–1]
• B. [M L2 T–2]
• C. [M L T–1]
• D. [M L2 T-1]

Answer 1

Answer: (D)

[M L2 T-1]

Answer 2

Angular impulse is defined as the change in angular momentum:

$\text{Angular impulse} = [\text{Angular momentum}] = [mvr] = [ML^2T^{-1}]$

Thus, the correct dimensional formula is $[ML^2T^{-1}]$.