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The radius of gyration of a disc of mass...

The radius of gyration of a disc of mass 100 g and radius 5 cm about an axis passing through its centre of gravity and perpendicular to the plane is

A

1.52 cm

B

3.54 cm

C

2.51 cm

D

6.54 cm

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SL ARORA-System of particles & rotational Motion-EXERCISE
  1. Two identical concentric rings each of mass m and radius R are placed ...

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  2. Find the ratio of the radii of gyration of a circular disc and a circu...

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  3. The radius of gyration of a disc of mass 100 g and radius 5 cm about a...

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  4. A flywheel is attached to an engine to

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  5. The angular momentum of a body with mass (m) moment of inertia (I) and...

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  6. Moment of inertia of a body is 1 kg m2. If the body makes 2 revolution...

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  7. A constant torque of 31.4 N-m id exterted on a pivoted wheel. If the a...

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  8. A particle performs uniform circular motion with an angular momentum L...

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  9. Two bodies have their moments of inertia I and 2 I respectively about ...

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  10. The angular momentum of a system of particles is conserved

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  11. The motion of planets in the solar system is an exmaple of the conserv...

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  12. A diver in a swimming pool bends his head before diving, because it

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  13. If a person standing on a rotating disc stretches out his hands, the a...

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  14. A dancer is rotating on smooth horizontal floor with an angular moment...

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  15. A round disc of moment of inertia I2 about its axis perpendicular to i...

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  16. A uniform disc of mass M and radius R is rotating in a horizontal plan...

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  17. A thin circular ring of mass m and radius R is rotating about its axis...

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  18. A loop of mass M and radius R is rolling on a smooth horizontal surfac...

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  19. A sphere of moment of inertia 'I' and mass 'm' rolls down on an inclin...

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  20. A disc is rolling without slipping. The ratio of its rotational kineti...

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