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Practice Online Test Series for JEE Main 2018 & NEET 2018

A rod of length `l` has velocity v at 'P’. The angular velocity of rod will be


A.

`(v sin alpha)/(l cos beta)`

B.

`(v cos alpha)/(l sin beta)`

C.

`(v sin (alpha+beta))/(l cos alpha)`

D.

`(v sin  (beta+alpha))/(l cos beta)`

Solution

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Best answer


`w=(v^'sin beta+v sin alpha)/l=1/l[(v cos alpha.sin beta)/(cos beta)+vsin alpha]=(v sin (alpha+beta))/(l cos beta)`