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A uniform circular disc of radius R is r...

A uniform circular disc of radius `R` is rotating about its own axis with moment of inertia `I` at an angular velocity `omega` if a denser particle of mass `m` is gently attached to the rim of disc than its angular velocity is

A

`omega `

B

`Iomega(I+mR)`

C

`(I+mR^(2))/(Iomega)`

D

`(Iomega)/(I+mR^(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
`I_(1)omega_(1) = I_(2)omega_(2)`
`I_(1) = I, I_(2) = I + mR^(2)`
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I(H.W)
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