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A solid cylinder of mass 20 kg rotates a...

A solid cylinder of mass 20 kg rotates about its axis with angular speed 100 rad `s^(-1)`. The radius of the cylinder is 0.25 m. What is the kinetic energy associated with the rotation of the cylinder? What is the magnitude of angular momentum of the cylinder about its axis?

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Kinetic Energy = 3125 J, Angular Momentum = 62.5 J s
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NCERT BANGLISH-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-EXERCISES
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  9. A hoop of radius 2 m weighs 100 kg. It rolls along a horizontal floor ...

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  10. The oxygen molecule has a mass of 5.30 × 10^(-26) kg and a moment of i...

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  11. A solid cylinder rolls up an inclined plane of angle of inclination 30...

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  13. A man stands on a rotating platform, with his arms stretched horizonta...

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  14. A bullet of mass 10 g and speed 500 m/s is fired into a door and gets ...

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  15. (a) Prove the theorem of perpendicular axes. (b) Prove the theorem o...

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  16. Prove the result that the velocity v of translation of a rolling body ...

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  17. A disc rotating about its axis with angular speed ω(o) is placed light...

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  18. Explain why friction is necessary to make the disc in Fig. 7.41 roll i...

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  19. A solid disc and a ring, both of radius 10 cm are placed on a horizont...

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  20. A cylinder of mass 10 kg and radius 15 cm is rolling perfectly on a pl...

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