A particle of mass 20 kg executing unifo...

A particle of mass 20 kg executing uniform circular motion on a path of radius 4.5 m , if the `30kg m//s` is the magnitude of licear momentum . Then the radian force acting on the particle is

40 N

20 N

30 N

10 N

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The correct Answer is:

`F=(P^(2))/(rm)=(30xx30)/(4.5xx20)=10N`

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