A block of mass $m$ is attached to two springs of spring constants $k_1$ and $k_2$ as shown in figure. The block is displaced by $x$ towards right and released. The velocity of the block when it is at $x/2$ will be

830-292

  • A

    $\sqrt {\frac{{\left( {{k_1} + {k_2}} \right){x^2}}}{{2m}}} $

  • B

    $\sqrt {\frac{3}{4}\frac{{\left( {{k_1} + {k_2}} \right){x^2}}}{m}} $

  • C

    $\sqrt {\frac{{\left( {{k_1} + {k_2}} \right){x^2}}}{m}} $

  • D

    $\sqrt {\frac{{\left( {{k_1} + {k_2}} \right){x^2}}}{4m}} $

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