Question

What is the dimensional formula for Work?

• A. $[ML{T}^{-2}]$
• B. $[M{L}^2{T}^{-2}]$
• C. $[M{L}^3{T}^{-2}]$
• D. $[M{L}^2{T}^{-1}]$

Answer 1

Answer: (B)

Work $=$ Force $\times$ displacement
$=m\times a\times s$
$=[ML{T}^{-2}][L]=[M{L}^2{T}^{-2}]$