MathematicsIf a particle moves along a straight line by S=4t2−8t+3 and the time at which the particle comes to rest is ‘t’ seconds then ‘2t’ is

If a particle moves along a straight line by S=4t28t+3 and the time at which the particle comes to rest is ‘t’ seconds then ‘2t’ is

  1. A

    2

  2. B

    1

  3. C

    4

  4. D

    8

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    Solution:

    v=dsdt=8t8 v=0 t=1

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