JEE Main & Advanced Sample Paper JEE Main Sample Paper-5

  • question_answer
    Statement I A ball is left from a tower. The ball will cover same distance in consecutive seconds.
    Statement II The distance covered in a second for free fall\[=\frac{1}{2}g{{t}^{2}}\].

    A)  Both Statement I and Statement II are true and the Statement II is the correct explanation of the Statement I

    B)  Both Statement I and Statement II are true but the Statement II is not the correct explanation of the Statement I

    C)  Statement I is false but Statement II is true

    D)  Both Statement I and Statement II are false

    Correct Answer: C

    Solution :

     Statement I is false but Statement II is true. In free fall distance covered in 1st second \[{{x}_{1}}=\frac{1}{2}\times 10\times {{(1)}^{2}}=\]5m Distance covered in 2nd second\[={{x}_{2}}-{{x}_{1}}\] \[=\frac{1}{2}g(t_{2}^{2}-t_{1}^{2})\] \[=\frac{1}{2}\times 10\times (4-1)=5\times 3=\]15m


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