A thin circular ring of mass 
and radius 
is rotating about its axis with a constant angular velocity 
. Four objects each of mass 
, are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be
a)
b)
c)
d)
A thin circular ring of mass and radius is rotating about its axis with a constant angular velocity . Four objects each of mass , are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be
a)
b)
c)
d)
Question ID - 53821 | SaraNextGen Top Answer
A thin circular ring of mass and radius is rotating about its axis with a constant angular velocity . Four objects each of mass , are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be
a)
b)
c)
d)
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A thin circular ring of mass |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (a) -
(a)
Initial angular momentum of ring, 
Final angular momentum of ring and four particles system
As there is no torque on the system therefore angular momentum remains constant
127 votes
Answer Link
127