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A circular table rotates about a vertica...

A circular table rotates about a vertical axis with a constant angular speed `omega`. A circular pan rests on the turn table (with the centre coinciding with centre of table) and rotates with the table. The bottom of the pan is covered with a uniform small thick layer of ice placed at centre of pan. The ice starts melting. The angular speed of the turn table.

A

remains the same

B

decrease

C

increase

D

may increase or decrease dependingon the thickness of ice layer

Text Solution

AI Generated Solution

To solve the problem, we need to analyze the situation using the principles of rotational mechanics, specifically the conservation of angular momentum. Here’s a step-by-step breakdown of the solution: ### Step 1: Understand the System We have a circular table rotating about a vertical axis with a constant angular speed \( \omega \). A circular pan rests on this turntable, and the bottom of the pan is covered with a layer of ice. As the ice melts, it will turn into water and spread out over the pan. **Hint:** Visualize the setup and identify the components involved: the turntable, the pan, and the ice. ### Step 2: Initial Moment of Inertia ...
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DC PANDEY ENGLISH-ROTATIONAL MECHANICS-Level 1 Objective
  1. Two bodies A and B made of same material have the moment of inertial i...

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  2. When a sphere rolls down an inclined plane, then identity the correct ...

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  3. A circular table rotates about a vertical axis with a constant angular...

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  4. If R is the radius of gyration of a body of mass M and radius r, then ...

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  5. A solid sphere rolls down two different inclined planes of the same he...

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  6. For the same total mass, which of the following will have the largest ...

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  7. A disc and a solid sphere of same mass and radius roll down an incline...

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  8. A horizontal disc rotates freely with angular velocity omega about a v...

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  9. A solid homogeneous sphere is moving on a rough horizontal surface, pa...

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  10. A particle of mass m=3kg moves along a straight line 4y-3x=2 where x a...

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  11. A solid sphere rolls without slipping on a rough horizontal floor, mov...

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  12. Let l be the moment of inertia of a uniform square plate about an axi...

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  13. A spool is pulled horizontally on rough surface by two equal and oppos...

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  14. Two identical discs are positioned on a vertical axis as shown in the ...

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  15. The moment of inertia of hollow sphere (mass M) of inner radius R and ...

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  16. A rod of uniform cross-section of mass M and length L is hinged about ...

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  17. Let I(1) and I(2) be the moment of inertia of a uniform square plate a...

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  18. Moment of inertia of a uniform rod of length L and mass M, about an ax...

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  19. A uniform rod of legth L is free to rotate in a vertica plane about a ...

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  20. Two partcles of masses 1 kg and 2 kg are placed at a distance of 3 m. ...

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