JEE Main · 2024 · 01 Feb 2024 · Shift 1 · Rotational Mechanics

The dimensional formula of angular impulse is :

(A) $[M L^{- 2} T^{- 1}]$
(B) $[M L^{2} T^{- 2}]$
(C) $[ML T^{- 1}]$
(D) $[M L^{2} T^{- 1}]$ ✓ Correct

Answer: (D)

Solution

Angular impulse equals the change in angular momentum, so it carries the same dimensions as angular momentum

L = m v r

[Angular impulse] = [M] [L T^{- 1}] [L] = [M L^{2} T^{- 1}]

JEE Main · 2024 · 01 Feb 2024 · Shift 1 · Single correct option

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