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

  • question_answer
    The initial velocity of a body moving along a straight line is 7 \[m/s\]. It has a uniform acceleration of \[4\,m/{{s}^{2}}\]. The distance covered by the body in the 5th second of its motion is                                           [MP PMT 1994]

    A)             25 m

    B)             35 m

    C)             50 m   

    D)             85 m

    Correct Answer: A

    Solution :

                                \[{{S}_{n}}=u+\frac{a}{2}\left[ 2n-1 \right]\]             \[{{S}_{{{5}^{th}}}}=7+\frac{4}{2}\left[ 2\times 5-1 \right]=7+18=25m\].


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