If \(x \quad \alpha + \beta t^{2}\) , where % is the distan…

Physics Units, Dimensions and Measurement Units Single Correct MCQ

Published on: September 12, 2026

If \(x \quad \alpha + \beta t^{2}\) , where % is the distance travelled by the body in kilometres while t is the time in seconds, then the units of b are

km/s

\(km\cdot s\)

\(\mathrm{km\,s^{-1}}\)

\(\mathrm{km \cdot s^{-1}}\)

Text Solution

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The correct answer is:

\([x] = [b r^2] \Rightarrow [b] = [x / t^2] = km / s^2\)

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