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If the radius of gyration of a solid dis...

If the radius of gyration of a solid disc of mass 10 kg about an axis is 0.40 m, then the moment of inertia of the disc about that axis is

A

`1.6 " kg m"^(2)`

B

`3.2 "kg m"^(2)`

C

`6.4 "kg m"^(2)`

D

`9.5 " kg m"^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A

`K = sqrt(I/M) " " rArr I = K^(2) M `
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I (C.W)
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  2. Two bodies of mass 1 kg and 2 kg are attached to the ends of a 2 me...

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  3. If the radius of gyration of a solid disc of mass 10 kg about an axis ...

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  4. A hoop of mass 500gm & radius 10cm is placed on a nail, then the momen...

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  5. The ratio of moments of inertia of two solid spheres of same mass but ...

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  6. The radius of a solid sphere is R and its density D. When it is made t...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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