What should be the angular speed of earth, so that body lying on equat – McqOptions

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1.	What should be the angular speed of earth, so that body lying on equator may appear weightlessness \[(g=10\,m/{{s}^{2}},\,\,R=6400\,km)\] [Pb. PET 2000]
A.	\[\frac{1}{800}rad/s\]
B.	\[\frac{1}{400}rad/s\]
C.	\[\frac{1}{600}rad/s\]
D.	\[\frac{1}{100}rad/s\]
Answer» B. \[\frac{1}{400}rad/s\]

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