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If ecternal force acting on a system ...

If ecternal force acting on a system is constant . It means that the velocity of the CM .

A

is constant

B

is variable

C

depends on internal forces

D

None of the above

Text Solution

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The correct Answer is:
B
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -C.U.Q
  1. The concept of CM is applicable

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  2. If ecternal force acting on a system is constant . It means that t...

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  3. The centre of mass of a body

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  4. The centre of mass of a system of particles does not depend on

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  5. The centre of mass of a body

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  6. Two bodies A and B initially at rest are attrached towards each other ...

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  7. A uniform straight rod is placed in vertical position on a smooth hori...

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  8. Centre of mass of the earth-moon system lies

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  9. Two balls are thrown simultaneously in air. The acceleration of the ce...

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  10. For a rotating body about fixed axis ,

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  11. For a pure rotational motion ,

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  12. Choose the correct option for rotational motion .

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  13. Two particles p and q located at distances rp and rq respectively from...

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  14. Identify the increase in order of the angular velocities of the follow...

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  15. The direction of following vectors is along the line of axis of rotati...

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  16. The correct relation of the following is

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  17. Which of the following is wrong

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  18. If force vector is along X-axis and radius vector is along Y-axis then...

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  19. During rotation of a body, the position vector is along X-axis and for...

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  20. If the direction of position vector vec r is towards south and direcit...

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