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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
- The moment of inertia of a semicircular ring about the centre is
- The frequency of fundamental tone in an open organ pipe of length
- A dust packet is dropped from 5th storey of a multi-storeyed building
- The momentum of a body is increased by 20%.The percentage increases in kinetic energy
- An object is projected with a velocity of 20 m/s making an angle of 45⁰ with horizontal.
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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