Question

The dimensional formula of angular impulse is :

(1) \([ML^{-2}T^{-1}]\)

(2) \([ML^2 T ^{-2}]\)

(3) \([ML\,T^{-1}]\)

(4) \([M\,L^2 T^{-1}]\)

Answer 1

(4) \([M\,L^2 T^{-1}]\)

Angular impulse = change in angular momentum.

[Angular impulse] = [Angular momentum] = [mvr]

\(=[M\,L^2T^{-1}]\)