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The centre of mass of a ring of uniform ...

The centre of mass of a ring of uniform mass distribution lies ………….

A

at the centre of ring, but outside the material

B

outside the ring material

C

centre of ring, but inside the material

D

at the centre of ring

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The correct Answer is:
A
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KUMAR PRAKASHAN-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-SECTION-E MULTIPLE CHOICE QUESTIONS
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  2. A bird of 3 kg is flying with a constant velocity of (2hati-4hatj)m//s...

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  3. The centre of mass of a ring of uniform mass distribution lies ………….

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  4. A bomb of mass 60 kg moving uniformly with a velocity of 10m/s explode...

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  5. The moment of inertia of a disc of uniform density about on axis coinc...

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  6. A wheel initially at rest acquires an angular velocity of 128 rad s^(-...

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  7. A shell following a parabolic path explodes some where in its flight. ...

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  8. A bus of 2500 kg is moving on a straight road with a speed of 40 km/h....

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  9. In cricket match, a bowler throws a ball of 0.5 kg with a speed of 20 ...

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  10. If the external force acting on a system of particle is zero then …………...

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  11. The centre of mass of a rigid body ………… the rigid body.

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  12. Angular momentum of the particle rotating with a centripetal force is ...

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  13. The radius of gyration of a ring about the tangent perpendicular to it...

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  14. Kinetic energy and angular velocity of a rigid body are E and omega re...

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  15. A fly wheel starts rotating from rest and acquires rotational speed of...

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  16. Two identical spheres are rolling down the slope. One is solid and oth...

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  17. A motor is rotating at a constant angular velocity of 600 rpm. The ang...

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  18. A solid cylinder is rolling down the inclined plane without slipping. ...

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  19. A ball rolls without slipping. The radius of gyration of the ball abou...

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  20. A solid cylinder of mass M and radius R rolls without slipping down an...

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