1.

The angular velocity of second's hand of a watch will be.

Answer»

`60 PI " RAD"//s `
`(pi)/(60)pi " rad"//s`
`40pi" rad"//s`
`(pi)/(30)pi" rad"//s`

Solution :`w=(2PI)/(T)=(2pi)/(60)=(pi)/(30) ` rod/s


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