First slide

Dimensions of physical quantities

Question

Find the dimensional formula of Impulse, $J$ .

Easy

A

$[{MLT}^{- 2}]$
B

$[{MLT}^{2}]$
C

$[{MLT}^{- 1}]$
D

$[{MLT}^{1}]$

Solution

$J = F \times t [J] = [F] [t] = {[MLT}^{- 2}] [T] = [{MLT}^{- 1}]$

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