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In pure rolling motion of a ring (a) i...

In pure rolling motion of a ring
(a) it rotates about instantaneous point of contact of ring and ground
(b) its centre of mass moves in translatory motion only
(c ) its centre of mass will have translatory as well as rotatory motion

A

only a is correct

B

a and c are correct

C

a and b are correct

D

a,b and c are correct

Text Solution

Verified by Experts

The correct Answer is:
C
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Statement A : Whrn no external force acts on a body its centre of mass will be at rest or under uniform motion. Statement B : When a force acts on a body at its centre of mass then will have only translation motion

Statements : (a) Motion of centre of mass depends on external forces applied on it. (b) The motion of the centre of mass of the body is called the translational motion of the body.

AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Exercise-I
  1. Mass of a ring is non-uniformly distributed around its geometric centr...

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  2. A disc of radius r is removed from the disc of radius R then (a) The...

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  3. In pure rolling motion of a ring (a) it rotates about instantaneous ...

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  4. A tank filled water is connected to another empty tank lying to the ri...

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  5. Statement A : When an iron sphere on the ground is heated its centre o...

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  6. Statement A : Whrn no external force acts on a body its centre of mass...

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  7. Statements : (a) In translatory motion each point of the body expe...

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  8. Statements : (a) Centre of mass is that fixed point of a system of p...

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  9. Statements : (a) Position of C.m depends on acceleration due to grav...

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  10. Statements : (a) Ration of the distance of the centre of mass of a...

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  11. The centre of mass of the system of particles depends on (a) masse...

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  12. Statements : (a) Allgebric sum of moments of mass about centre of ma...

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  13. If no external force acts on the system (a) Acleleration of centre...

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  14. Statements : (a) The motion of the centre of mass can be studied u...

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  15. Statements : (a) Motion of centre of mass depends on external forc...

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  16. The moon moves around the earth in a circular orbit and the earth move...

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  17. A particle moves along a horizontal circle witrr constant speed. If 'a...

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  18. Identify the increasing order of the angular velocities of the followi...

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  19. When a body is whirled in a vertical circle such that its total mechan...

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  20. Moment of inertia of a rigid body depends on (A) Mass of body (...

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