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Three particles of masses 1gm, 2gm & 3gm...

Three particles of masses `1gm, 2gm & 3gm` are at `1cm, 2cm & 3cm` from the axis of rotation respectively then the moment of inertia of the system & radius of gyration of the system respectively are …. `gm cm^2` and ….. `cm`

A

63.2.449

B

60,4.5

C

36.4.449

D

36,2.449

Text Solution

Verified by Experts

The correct Answer is:
D

` I = 1 xx1^(2) + 2 xx 4 + 3 xx 9 = 36 `
` K = sqrt(I/M ) = sqrt(36/6 ) = sqrt(6)`
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I (C.W)
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  2. The radius of a solid sphere is R and its density D. When it is made t...

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  3. Three particles of masses 1gm, 2gm & 3gm are at 1cm, 2cm & 3cm from th...

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  4. The radius of gyration of body is 18cm when it is rotating about an ax...

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  5. The position of axis of rotation of a body is changed so that its mome...

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  6. The diameter of a fly wheel is R. Its coefficient of linear expansion ...

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  7. Three point sized bodies each of mass M are fixed at three corners of ...

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  8. In above problem about an axis perpendicular to the palne of frame...

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  9. In above problem about an axis passing through any side of frame th...

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  10. Four point size bodies each of mass M are fixed at four corners of a l...

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  11. The moment of inertia of a metre stick of mass 300 gm , abut an a...

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  12. Three point masses m are placed at the vertices of an equilateral t...

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  13. A torque of 10 Nm is applied on a wheel having angular momentum of 2 k...

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  14. A car of mass 300 kg is travelling on a circular track of radius 100 m...

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  15. A particle of mass 0.01 kg having position vector vecr = ( 10 hati + 6...

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  16. A particle of mass m is moving along a circle of radius r with a time ...

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  17. A mass is whirled in a circular path with an angular momentum L. If th...

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  18. The diameter of a disc is 1m. It has a mass of 20kg. It is rotating ab...

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  19. A particle performing uniform circular motion gas angular momentum L. ...

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  20. A constant torque acting on a uniform circular wheel changes its angul...

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