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A hoop of radius 2 m weighs 100 kg. It r...

A hoop of radius 2 m weighs 100 kg. It rolls along a horizontal floor so that its centre of mass has a speed of `20 cm//s`. How much work has to be done to stop it?

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  11. Two dics of moments of inertia I1 and I2 about their respective axes (...

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  12. The discs of moments of inertia I1 and I2 about their respective axis ...

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  13. Prove the theorem of perpendicular axes. (Hint: Square of the distance...

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  14. Prove the theorem of parallel axes.

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

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  16. A disc rotating about its axis with angular speed omega0 is placed lig...

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  17. Explain why friction is necessary to make the disc roll in the directi...

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  18. Explain why friction is necessary to make the disc roll in the directi...

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  19. What is the force of friction after perfect rolling begins?

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

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