A small body of mass $m$ slides down from the top of a hemisphere of radius $r$. The surface of block and hemisphere are frictionless. The height at which the body lose contact with the surface of the sphere is

814-733

  • A

    $\frac{3}{2}r$

  • B

    $\frac{2}{3}r$

  • C

    $\frac{1}{2}g{t^2}$

  • D

    $\frac{{{v^2}}}{{2g}}$

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