1.

In order that a body of 15 kg weighs zero at the equator, then the angular speed of earth is : (g=10ms^(-1))

Answer»

`(1)/(80) " RAD s"^(-1)`
`(1)/(400)" rad s"^(-1)`
`(1)/(100)" rad s"^(-1)`
`(1)/(1600)" rad s"^(-1)`

ANSWER :C


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