Units And Dimensions Question 1

Question 1 - 2024 (01 Feb Shift 1)

The dimensional formula of angular impulse is :

(1) $\left[ML^{-2} T^{-1}\right]$

(2) $\left[ML^{2} T^{-2}\right]$

(3) $\left[MLT^{-1}\right]$

(4) $\left[ML^{2} T^{-1}\right]$

Show Answer

Answer: (4)

Solution:

Angular impulse $=$ change in angular momentum.

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

$=\left[ML^{2} T^{-1}\right]$