What should be the angular speed of earth, so that body lying on equator may appear weightlessness $ (g = 10\,m/{s^2},\,\,R = 6400\,km)$

  • A

    $\frac{1}{{800}}rad/s$

  • B

    $\frac{1}{{400}}rad/s$

  • C

    $\frac{1}{{600}}rad/s$

  • D

    $\frac{1}{{100}}rad/s$

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