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Two masses of 8 kg and 4 kg are connecte...

Two masses of `8 kg` and `4 kg` are connected by a string as shown in figure over a frictionless pulley.The acceleration of the system is

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The correct Answer is:
C

add (1) and (2)
`0=12arArra=0`
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NARAYNA-LAW OF MOTION-EXERCISE - IV
  1. The pulley arrangements shown in figure are identical, the mass of the...

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  2. A string of negligible mass going over a clamped pulley of mass m supp...

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  3. Two masses of 8 kg and 4 kg are connected by a string as shown in figu...

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  4. An empty plastic box of mass m is found to accelerate up at the rate o...

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  5. A monkey is decending from the branch of a tree with constant accelera...

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  6. Fig. shows a system of three masses being pulled with a force F. the m...

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  7. Fig. shows a block of mass m(1) resting on a smooth surface. It is con...

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  8. A 100 kg block is suspended with the help of three strings A, B and C....

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  9. A frictionless inclined plane of length l having inclination theta is ...

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  10. Friction

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  11. A box is placed on an inclined plane and has to be pushed down.The ang...

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  12. Figure shows two block A and B pushed against the wall with the force ...

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  13. If mu(k) is the coefficient of kinetic friction and mu(s) the coeffici...

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  14. A block of mass m is placed on a rough floor of a lift . The coeffi...

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  15. When a horse pulls a wagon, the force that causes the horse to move fo...

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  16. The coefficient of static friction, mu(s) between block A of mass 2 k...

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  17. A body of mass m slides down a rough plane of inclination alpha . If m...

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  18. A particle is moving along a circular path. The angular velocity, line...

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  19. The angular acceleration of a particle moving along a circular path wi...

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  20. A bike of mass 200 kg (with rider) is running on the road with constan...

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