JEE Main & Advanced Physics Motion in a Straight Line / सरल रेखा में गति Question Bank Non-uniform Motion

  • question_answer
    If a body starts from rest and travels 120 cm in the 6th second, then what is the acceleration [AFMC 1997]

    A)             0.20 \[m/{{s}^{2}}\]

    B)             0.027 \[m/{{s}^{2}}\]

    C)             0.218 \[m/{{s}^{2}}\]

    D)             0.03 \[m/{{s}^{2}}\]

    Correct Answer: C

    Solution :

                                \[{{S}_{n}}=u+\frac{a}{2}(2n-1)\] Þ \[1.2=0+\frac{a}{2}(2\times 6-1)\]             Þ \[a=\frac{1.2\times 2}{11}=0.218\ m/{{s}^{2}}\]


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