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A block of mass kg lies on a horizontal ...

A block of mass kg lies on a horizontal surface in a truck· The coefficient of stalk friction between the block and the surface is 0.6. If the acceleration of the truck is `5ms^(-2)`. The frictional force acting on the block is

A

2 N

B

5 N

C

3N

D

6N

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The correct Answer is:
B
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AAKASH SERIES-LAWS OF MOTION-EXERCISE - II
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  2. A car is driven round a curved path of radius 18 m without the danger ...

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  3. A block of mass kg lies on a horizontal surface in a truck· The coeff...

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  4. A box is placed on the floor of a truck moving with an acceleration of...

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  5. The rear side of a truck is open and a box of mass 40kg is placed 5m ...

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  6. A horizontal force 10 N is necessary to just hold a block stationary a...

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  7. A person holds a block weighing 2kg between his hands & keeps it from ...

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  8. An eraser weighing 2N is pressed against the black board with a force ...

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  9. A block of mass 4kg is placed in contact with the front vertical surfa...

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  10. A book of weight 20 N is pressed between two hands and each hand exert...

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  11. A man of mass 40 kg is at rest between the walls as shown in the figur...

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  12. A wooden block is placed on an inclined plane. The block just begins t...

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  13. A block of mass 2 kg rests on a rough inclined plane making an angle o...

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  14. A body takes 1(1/3) times as much time to slide down a rough inclined ...

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  15. A block of mass 2kg is lying on a rough inclined plane. The force need...

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  16. A block sliding down a rough 45° inclined plane has half the velocity ...

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  17. A block is pushed up a rough inclined plane of 45°. If the time of des...

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  18. A rod AB of length 2L and mass m is lying on a horizontal frictionless...

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  19. A body is allowed to slide from the top along a smooth inclined plane ...

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  20. A particle is projected at an angle theta =30^@ with the horizontal, w...

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