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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
- A force F=ai+3j+6k is acting at a point r=2i-6j-12k. The value of α for
- A horizontal straight conductor kept in north-south direction falls under gravity. Then
- In a tangent galvanometer, a current of 0.1 A produces a deflection of 30⁰.
- The temperature at which the vapour pressure of a liquid becomes equal to the external
- A vibration magnetometer placed in magnetic meridian has a small bar magnet
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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