JEE Advanced · PhysicsEasy

$What is the dimensional formula for force?$

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

Show correct answer & step-by-step solution

Correct answer: A — $[M L T^{- 2}]$

Solution

Force is defined as F = ma . Since acceleration a has dimensions [L T^{- 2}], the dimension of force is [M] [L T^{- 2}] = [M L T^{- 2}] .

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