Q. Dimensional formula for force is
A) $\left\lbrack {ML}^{2}T^{- 2} \right\rbrack$
B) $\left\lbrack {MLT}^{- 2} \right\rbrack$
C) $\left\lbrack {ML}^{- 1}T^{- 2} \right\rbrack$
D) $\left\lbrack {ML}^{2}T^{- 2} \right\rbrack$
Explanation
$Force = mass\ \times acceleration$ Or $\ \ \ \ \ \ \ \ \ \ \ \ \ F = ma$ $\therefore\ \ \ \ \ \ \ \ \ \ \ \ \lbrack F\rbrack = \lbrack m\rbrack\lbrack a\rbrack$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = \lbrack M\rbrack\left\lbrack LT^{2} \right\rbrack$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = \left\lbrack MLT^{- 2} \right\rbrack$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.