What is the angular velocity of earth

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What is the angular velocity of earth

A

$\frac{{2\pi }}{{86400}}rad/\sec $

B

$\frac{{2\pi }}{{3600}}rad/\sec $

C

$\frac{{2\pi }}{{24}}rad/\sec $

D

$\frac{{2\pi }}{{6400}}rad/\sec $

What is the angular velocity of earth

Angular velocity $ = \frac{{2\pi }}{T} = \frac{{2\pi }}{{24}}rad/hr$$ = \frac{{2\pi }}{{86400}}rad/s$