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Rotational Motion question

2015 · Shift 1 · Q53
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Rotational Motion question

2015 · Shift 1 · Q53

JEE AdvancedPhysicsRotational MotionMultiple correct+4 / −2
A ring of mass M and radius R is rotating with angular speed ω\omegaω about a fixed vertical axis passing through its centre O with two point masses each of mass M8{M \over 8}8M​ at rest at O. These masses can move radially outwards along two massless rods fixed on the ring as shown in the figure. At some instant, the angular speed of the system is 89ω{8 \over 9}\omega98​ω and one of the masses is at a distance of 35{3 \over 5}53​ R from O. At this instant, the distance of the other mass from O is JEE Advanced 2015 Paper 1 Offline Physics - Rotational Motion Question 40 English
  1. A
    23{2 \over 3}32​ R
  2. B
    13{1 \over 3}31​ R
  3. C
    35{3 \over 5}53​ R
  4. D
    45{4 \over 5}54​ R
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