The angular speed of earth, so that the object on equator may appear weightless

The angular speed of earth, so that the object on equator may appear weightless is(g = 10 m/s², radius of earth=6400 km)

Options

(a) 1.25 x 10⁻³ rad/s
(b) 1.56 x 10⁻³ rad/s
(c) 1.25 x 10⁻1 rad/s
(d) 1.56 rad/s

Correct Answer:

1.25 x 10⁻³ rad/s

Explanation:

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