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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 15

  • question_answer
    A particle is moving in a straight line. The particle was initially at rest. Acceleration versus time graph is shown in the figure. Acceleration of particle is given by \[a=3\text{ }sin\,\,\pi t\]in\[m/{{s}^{2}}\]. The time instant (s) when the particle comes to rest is

    A) \[t=0,1,2,3,4\]     

    B) \[t=1,3\]              

    C) \[t=0,2,4\]           

    D) only at \[t=0\]

    Correct Answer: C

    Solution :

    [c] Area under the a-t curve gives change in velocity.


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