Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
In $S=a+b t+c t^2$. $S$ is measured in metres and $t$ in seconds. The unit of $c$ is
PhysicsUnits and DimensionsJEE Main
Options:
  • A None
  • B $m$
  • C $ms^{-1}$
  • D $ms^{-2}$
Solution:
2219 Upvotes Verified Answer
The correct answer is: $ms^{-2}$
$c t^2$ must have dimensions of $L$
$\Rightarrow$ c must have dimensions of $L / T^2$ i.e. $L T^{-2}$.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.