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The radius of the earth is `6400 km` and `g=10m//sec^(2)`. In order that a dody of `5 kg` weight zero at the equator, the angular speed of the earth i

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The radius of the earth is `6400 km` and `g=10m//sec^(2)`. In order that a dody of `5 kg` weight zero at the equator, the angular speed of the earth is
A. 1/80 radian / sec
B. 1/400 radian / sec
C. 1/800 radian / sec
D. 1/1600 radian / sec
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Correct Answer - C
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