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The motion of centre of mass of a system...

The motion of centre of mass of a system of two particles is unaffected by their internal forces

A

irrespective of the actual directions of the internal forces

B

only if they are along the line joining the particles

C

only if acts perpendicular to each othe

D

only if acting opposite

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The correct Answer is:
A
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FULL MARKS-MOTION OF SYSTEM OF PARTICLES AND RIGID BODIES-ADDITIONAL QUESTIONS SOLVED - I ( MULTIPLE CHOICE QUESTION)
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  2. The dimension of point mass is

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  3. The motion of centre of mass of a system of two particles is unaffecte...

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  5. The centre of mass of a system of particles does not depend upon

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  6. The Centre of mass of a solid cone along the line from the centre of t...

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  7. All the particles of a body are situated at a distance of X from origi...

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  8. A free falling body breaks into three parts of unequal masses. The cen...

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  9. The distance between the centres of carbon and oxygen atoms in the gas...

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  10. The unit of position vector of center of mass is

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  11. The sum of moments of masses of all the particles in a system about th...

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  12. The motion of center of mass depends on

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  13. Two particles P and Q move towards with each other from rest with the ...

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  14. The reduced mass of the system of two particles of masses 2 m and 4 m ...

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  15. The motion of the center of mass of a system consists of many particle...

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  16. The positon of center of mass can be written in the vector form as

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  17. The positions of two masses, x1 and x2. The position of center of mass...

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  18. In a two particle system, one particle lies at origin another one lie...

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  19. State the principle of moments .

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  20. Infinitesimal quantity means

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