Martians use force (F) , acceleration (A) and time (T) as their fundamental physical quantities. dim

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1.Units, Dimensions and Measurement

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The Martians use force $(F)$, acceleration $(A)$ and time $(T)$ as their fundamental physical quantities. The dimensions of length on Martians system are

A

$F{T^2}$

B

${F^{ - 1}}{T^2}$

C

${F^{ - 1}}{A^2}{T^{ - 1}}$

D

$A{T^2}$

Solution

(d) Acceleration = $\frac{{{\rm{distan}}{\rm{ce}}}}{{{\rm{tim}}{{\rm{e}}^2}}}$ $⇒ A = L{T^{ – 2}} \Rightarrow L = A{T^2}$

Standard 11

Physics

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