Question

If the force (F), length (L) and time (T) are assumed to be the fundamental units, then the dimensional formula of the mass will be

• A. FL^-1r²
• B. FL^-1r^-2
• C. FL^-1r^-1
• D. FL²r²

Answer 1

The correct option is A.

We know that,

$F=ma$

$\Rightarrow m=\frac{F}{a}$

$\left[a\right]=\left[M^0{L}^1{T}^{-2}\right]$

$m=F{L}^{-1}{T}^2$.