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A metre stick is balanced on a knife edg...

A metre stick is balanced on a knife edge at its centre. When two coins, each of mass `5 g` are put one on one of the other at the `12 cm` mark, the stick is found to balanced at `45 cm`. The mass of the metre stick is.

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`66.0 g`
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NCERT TAMIL-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-EXERCISES
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  2. A rope of negligible mass is wound around a hollow cylinder of mass 3 ...

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  3. To maintain a rotor at a uniform angular speed of 100 rads^(-1) an eng...

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  4. From a uniform disc of radius R, a circular section of radius R//2 is ...

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  5. A metre stick is balanced on a knife edge at its centre. When two coin...

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  7. A hoop of radius 2m, weight 100 kg. It rolls along horizontal floor so...

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

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  9. A sphere rolls up an inclined plane whose inclination is 30^(@). At th...

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  10. As shown in Fig. the two sides of a step ladder BA and CA are 1.6 m lo...

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

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

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  13. Two discs of moments of inertia I(1) and I(2) about their respective a...

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  14. (a) Prove the theorem of perpendicular axes. (Hint : Square of the d...

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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 ω(o) is placed light...

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  17. (i) Explain why friction is necessary to make the disc to roll in the ...

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

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

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  20. Separation of Motion of a system of particles into motion of the centr...

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