Q. $\left\lbrack {ML}^{2}L^{- 2} \right\rbrack$ are dimensions of
A) Force
B) Moment of force
C) Momentum
D) Power
Explanation
In general, moment $(M)$ of force $(F)$ is $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ M = r \times F$ $\therefore$ Dimensions of $M = \lbrack L\rbrack\left\lbrack MLT^{- 2} \right\rbrack$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = \left\lbrack ML^{2}T^{- 2} \right\rbrack$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.