Initially the whole system is at rest and now a force of $62\ N$ is applied on the block $B$ as shown in the figure. Find the time taken by $'A'$ to fall from the block $'B'$ ........... $\sec$

817-457

  • A

    $\frac{8}{3}$

  • B

    $3$

  • C

    $4$

  • D

    $5$

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  • [JEE MAIN 2015]

The blocks are given velocity in the direction shown in figure. Co-efficient of friction between two blocks shown in figure is $μ = 0.5$. Take $g = 10\  m/s^2$

(considering $4\ kg$ block doesn't fall on ground)

Consider the following statements

$(i)$  Time when relative motion between them is stopped is $1.4\  second$.

$(ii)$  Time when relative motion between them is stopped in $1.2\  second$

$(iii)$  The common velocity of the two blocks is $8\  m/s$, towards right.

$(iv)$  The displacement of the $4\, kg$ block when relative motion stopped is$10.8\  m$.

Which of the fstatements is/are correct