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Two balls A and B weighing 7 N and 9 N a...

Two balls A and B weighing 7 N and 9 N are connected by a light code. The system is suspended from a fixed support by connecting the ball A with another ligh cord. The ball B is pulled aside by a horizontal force 12 N and equilibrium is established. Angles `alpha and beta` respectively are

A

`30^(@)and 60^(@)`

B

`60^(@)and 30^(@)`

C

`37^(@)and 53^(@)`

D

`53^(@)and 37^(@)`

Text Solution

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The correct Answer is:
C
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ALLEN -NEWTON'S LAWS OF MOTION & FRICTION-EXERCISE (O-1)
  1. Four blocks of the same mass m connected by cords are pulled by a forc...

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  2. In a given figure system is in equlibrium, If W(1)= 300 N. Then W(2) i...

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  3. Two balls A and B weighing 7 N and 9 N are connected by a light code. ...

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  4. A girl pushes her physics book up against the horizontal ceiling of he...

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  5. Two astronauts A and B connected with a rope stay stationary in free s...

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  6. Three boxes are placed in a life. Wheen acceleration of the life is 4m...

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  7. A man is standing on a weighing machine with a block in his hand. The ...

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  8. A block is being pulled by a force F on a long frictionless level floo...

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  9. A block B is tied to one end of a uniform rope R as shown. The mass of...

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  10. The pulleys and strings shown in the fig are smooth and of negligible ...

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  11. A block resting on a smooth inclined plane is acted upon by a force F ...

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  12. In the arrangement shown, the blocks of unequal masses are held at res...

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  13. A monkey weighing 10 kg climbing up a light rope and frictionless pull...

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  14. A heavy cart is pulled by a constant force F along a horizontal track ...

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  15. In arrangement shown the block A of mass 15 kg supported in equilibriu...

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  16. In the given figure, Find mass of the block A, if it remains at rest, ...

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  17. In the arrangement shown, the 2 kg block is held to keep the system at...

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  18. A string of negligible mass going over a clamped puley of mass m suppo...

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  19. Block A is moving away from the wall at a speed v and acceleration a.

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  20. In the setup shown, fird acceleration of the block C.

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