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Haryana PMT Haryana PMT Solved Paper-2006

  • question_answer
    A velocity of a particle at an instant is 10 m/s.      After 3 s its velocity will become 16 m/s. The       velocity at 2 s, before the given instant will be :

    A)                  6 m/s                                   

    B)  4 m/s

    C)                  2 m/s                                   

    D)  1m/s

    Correct Answer: A

    Solution :

                    \[16=10+3a\] [Here,   \[u=10m/s,v=16m/s,\]                              \[t=3s,\,\,a=2m/{{s}^{2}}\]] and     \[10=u+2\times 2\][u = required velocity]                 \[u=6m/s\]                         (\[\because \] \[t=2s\])


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