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Find the angular speed of revolution of ...

Find the angular speed of revolution of earth required so that the body on its surface at equator would feel no weight.

A

`1.237 xx 10^-3 rad/s`

B

`1.237 xx 10^-4 rad//s`

C

`7.27 xx 10^-3 rad//s`

D

`7.27 xx 10^-4 rad//s`

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