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At any instant, a rolling body may be co...

At any instant, a rolling body may be considered to be in pure rotation about an axis through the point of contact. This axis is translating forward with speed

A

equal to centre of mass

B

zero

C

twice of centre of mass

D

None of the above

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The correct Answer is:
a
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-ROTATIONAL MOTION-Exercise
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  5. Two racing cars of masses m and 4m are moving in circles of radii r an...

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  6. If a spherical ball rolls on a table without slipping, the fraction of...

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  7. A thin uniform circular ring is rolling down an inclined plane of incl...

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  8. Angular momentum is

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  9. In a rectangle ABCD (BC=2AB). The moment of inertia is minimum along a...

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  10. A solid sphere, disc and solid cylinder, all of the same mass, are all...

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  11. The speed of a homogeneous solid sphere after rolling down an inclined...

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  12. A particle of mass m=5 kg is moving with a uniform speed v=3 sqrt(2) i...

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  13. If a sphere is rolling, the ratio of the translation energy to total k...

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  14. The moment of inertia of a body about a given axis is 1.2 kg m^(2). In...

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  15. Moment of inertia of a uniform circular disc about a diameter is I. It...

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  16. A fly wheel rotating about a fixed axis has a kinetic energy of 360 J....

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  17. At any instant, a rolling body may be considered to be in pure rotatio...

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  18. A solid cylinder of mass M and radius R rolls down an inclined plane o...

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  19. A ring of mass m and radius r rotates about an axis passing through it...

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  20. A solid homogeneous sphere is moving on a rough horizontal surface, pa...

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