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The minimum force required to move a body up an inclined plane is three times the minimum force required to prevent it from sliding down the plane. If the coefficient of friction between the body and the inclined plane is `(1)/(2sqrt3)`, then the angle of the inclined plane is

A

`60^(@)`

B

`45^(@)`

C

`30^(@)`

D

`15^(@)`

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The correct Answer is:
A
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AAKASH SERIES-LAWS OF MOTION-PRACTICE EXERCISE
  1. A block is pushed up a rough inclined plane of 45°. If the time of des...

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  2. An object takes 1 second to slide down a rough 45^(@) inclined plane. ...

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  3. A body slides down a smooth plane starting from rest in 4sec. Time tak...

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  4. A block is lying on an inclined plane which makes an angle of 60^@ wit...

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  5. A 10sqrt3 kg box has to move up an inclined slope of 60^(@) to the hor...

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  6. The minimum force required to move a body up an inclined plane is thre...

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  7. A body of mass 10kg is on a rough inclined plane having an inclination...

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  8. A block of wood mass 5kg is placed on a plane making an angle 30^(@) w...

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  9. A body of mass 'm' slides down a smooth inclined plane having an incli...

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  10. A body is sliding down an inclined plane have coefficient of friction ...

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  11. The centripetal force required for a 1000 kg car travelling at 36 kmph...

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  16. If the centripetal force acting on a body revolving along a circular p...

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  17. A bob is suspended from an ideal string of length 'l'. Now it is pulle...

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  18. An aircraft executes a horizontal loop at a speed of 720 km/h with its...

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  19. A cyclist is moving on a smooth horizontal curved path of radius of cu...

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  20. A car is negotiating a curved road of radius R. The road is banked at ...

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