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A cord is wound round the circumference of wheel of radius r.The axis of the wheel is horizontal and moment of inertia about it is I.A weight mg is attached to the end of the cord and fills from the rest .After falling through a distance h, the angular velocity of the wheel will be
Options
(a) √2gh / (1 + mr)
(b) √2mgh / (1 + mr²)¹/²
(c) √2mgh / (1 +2mr²)¹/²
(d) √2gh
Correct Answer:
√2mgh / (1 + mr²)¹/²
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- ln a surrounding medium of temperature 10⁰C a body takes 7 min for a fall
- The equivalent resistance of two resistors connected in series is 6 Ω
- An ideal heat engine works between temperature T₁=500 K and T₂=375 K.
- Two bodies of mass 0.25 kg each moving towards each other with velocity
- The electrons are emitted in the photoelectric effect from a metal surface
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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