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NEET Sample Paper NEET Sample Test Paper-16

  • question_answer
    A particle starts from rest at t = 0 and moves in a straight line with an acceleration as shown in figure. The velocity of the particle at t = 2.5 s is

    A) 2 m/s              

    B) 4 m/s   

    C)      6 m/s              

    D)      8 m/s

    Correct Answer: B

    Solution :

    Let the velocity at \[t=2.5\,s\]be v. So the change in the velocity from\[t=0\]to \[t=2.5\,s\]is also v. Change in velocity = Area under a -t curve with proper sign. or,\[v=4\times 1.5-2\times 1\] = 4 m/s. Hence, the correction option is (b).


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