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If the external forces acting on a syste...

If the external forces acting on a system have zero resultant, the centre of mass

A

must not move

B

must not accelerate

C

may move

D

may accelerate

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The correct Answer is:
B, C
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MOTION-CENTRE OF MASS-Exercise - 2 (Level-II)
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  2. In which o the following cases the centre of mass of a rod is certainl...

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  3. If the external forces acting on a system have zero resultant, the cen...

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  5. In which of the following cases the centre of mass of a rod is certain...

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  6. A particle of mass m moving horizontal with v(0) strikes a smooth wedg...

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  7. A particle of mass m moving horizontal with v(0) strikes a smooth wedg...

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  8. A particle of mass m moving horizontal with v(0) strikes a smooth wedg...

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  9. A particle of mass m moving horizontal with v(0) strikes a smooth wedg...

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  10. A particle of mass m moving horizontal with v(0) strikes a smooth wedg...

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  11. A particle of mass m moving horizontal with v(0) strikes a smooth wedg...

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  12. A particle of mass m moving horizontal with v(0) strikes a smooth wedg...

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  13. Two identical balls are interconnected with a massless and inextensibl...

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  14. Two blocks A (5kg) and B(2kg) attached to the ends of a spring constan...

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  15. Figure shows three identical blocks 1,2 & 3 each of mass m kept on fri...

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  16. Two blocks A and B each of mass m are connected by a light spring of n...

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  17. Two blocks of mass m(1) and m(2), resting on a frictionless table, are...

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  18. For a two body system in absence of external forces, the kinetic ener...

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  19. Two ball A and B having masses 1kg and 2kg, moving with speeds 21m//s ...

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  20. A bullet of mass m travelling horizontally with speed u strikes a wood...

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