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Four particles of mass 2 kg, 3kg, 4 kg a...

Four particles of mass 2 kg, 3kg, 4 kg and 8 kg are situated at the comers of a square of side length 2 m. The centre of mass may be given as

A

`(30/18,28/18)`

B

`(frac(20sqrt)(18),frac(24sqrt2)(18))`

C

`(frac(14)(17),frac(24)(17))`

D

`(frac(34)(18),frac(34)(18))`

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SL ARORA-System of particles & rotational Motion-EXERCISE
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  3. Four particles of mass 2 kg, 3kg, 4 kg and 8 kg are situated at the co...

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  7. Two bodies of masses 2 kg and 4 kg are moving with velocities 2 m/s an...

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  10. 2 bodies of different masses of 2 kg and 4 kg are moving with velociti...

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  13. A disc, initially at rest, starts rotating about its own axis/ with a ...

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  14. A car is moving at a speed of 72 km//h. The diameter of its wheels is ...

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  15. The motor of an engine is rotating about its axis with an angular ...

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  16. Angular acceleration alpha of a body is given by the relation a = 4at^...

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  17. The front wheel on an ancient bicycle has radius 0.5 m. It moves with ...

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  18. A ring of radius R is first rotated with an angular velocity omega and...

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  19. Which one is a vector quantity?

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

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