TS EAMCET · Maths · Application of Derivatives
A particle moves in a straight line such that its displacement (in ) at a time (in ) is given by The instantaneous velocity at is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Displacement S=t3-4t2+7t Velocity v=dsdt=3t2-8t+7 At t=4s, v=316-84+7 ⇒v=23 m/sec.
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