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Question: Answered & Verified by Expert
If the distance $s$ travelled by a particle in time $t$ is given by $s=t^2-2 t+5$, then its acceleration is
MathematicsDifferentiationTS EAMCETTS EAMCET 2011
Options:
  • A 0
  • B 1
  • C 2
  • D 3
Solution:
1270 Upvotes Verified Answer
The correct answer is: 2
Given, $s=t^2-2 t+5$
On differentiating w.r.t., $t$ we get
$\frac{d s}{d t}=2 t-2$
Again differentiating, we get
$\frac{d^2 s}{d t^2}=2$

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