QJEEM22Phf3ec: JEE Main 2022 Physics - Class 11 JEEM22Phf3ec Solution: A thin circular ring of mass M and radius R is rotating with a…

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QJEEM22Phf3ec: JEE Main 2022 Physics - Class 11 JEEM22Phf3ec Solution: A thin circular ring of mass M and radius R is rotating with a…

A thin circular ring of mass M and radius R is rotating with a constant angular velocity 2 rads^{$-$ 1} in a horizontal plane about an axis vertical to its plane and passing through the center of the ring. If two objects each of mass m be attached gently to the opposite ends of a diameter of ring, the ring will then rotate with an angular velocity (in rads^{$-$ 1}).

Multiple Choice Options

A M(M+m)
B (M+2m)2M
C 2M(M+2m)
D 2(M+2m)M

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Accepted Answer

$I_{1} ω_{1} = I_{2} ω_{2}$

$M R^{2} ω_{1} = (M R^{2} + 2 m R^{2}) ω_{2}$

$ω_{2} = (\frac{M}{M + 2 m}) ω_{1}$

$ω_{2} = 2 (\frac{M}{M + 2 m})$

QJEEM22Phf3ec: JEE Main 2022 Physics - Class 11 JEEM22Phf3ec Solution: A thin circular ring of mass M and radius R is rotating with a…

Multiple Choice Options

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