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MHT CET202014 Oct 2020Morning ShiftMathematicsApplication of DerivativesActual

A particle moves according to the law s=t³-6 t²+9 t+25 . The displacement of

Options

  1. A0 units
  2. B-27 units
  3. C27 units
  4. D9 units

Correct answer

C. 27 units

Step-by-step solution

Given s=t³-6 t²+9 t+25 ....(1) array l v= d s d t =3 t²-12 t+9 d v d t =6 t-12 array Given 6 t-12=0 t=2 from (1), s=(2)³-6 4+18+25=27

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