Which of the following pairs has the same dimensions?
AForce and Pressure
BWork and Energy
CMomentum and Impulse
DBoth (B) and (C)
Answer & Solution
Correct answer: D. Both (B) and (C)
Work and energy both have dimensions $[ML^2T^{-2}]$. Momentum has dimensions $[MLT^{-1}]$, and impulse = force $\times$ time also has dimensions $[MLT^{-1}]$. So both pairs in B and C match.
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