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A rocket is fired vertically from the ea...

A rocket is fired vertically from the earth with an acceleration of 2g, where g is the gravitational acceleration. On an inclined plane inside the rocket, making an angle `theta ` with the horizontal, a point object off mass m is kept. The minimum coefficient of friction `mu_m` in between the mass and the inclined surface such that the mass does not move is:

A

`tan 2theta `

B

`tan theta `

C

`3 tan theta `

D

`2 tan theta `

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The correct Answer is:
B
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AAKASH SERIES-RIVISION EXERCISE-FRICTION (INCLINED PLANE)
  1. A block of mass m is pulled along a horizontal surface by applying a f...

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  2. A body is moving down along inclined plane of angle of inclination q. ...

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  3. A block of mass m is placed on a surface with a vertical cross section...

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  4. The force required to move a body up a rough inclined plane is double ...

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  5. A rocket is fired vertically from the earth with an acceleration of 2g...

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  6. A block is pushed up a rough inclined plane of 45^@ with a velocity u....

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  7. A body is released from the top of a smooth inclined plane of inclinat...

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  8. A body is sliding down an inclined plane having coefficient of frictio...

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  9. A body is sliding down a rough inclined plane. The coefficient of fric...

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  10. Sand is pilled up on a horizontal ground in the form of a regular cone...

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  11. A box of mass 8 Kg is placed on a rough inclined plane of inclination ...

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  12. A box of mass 4 Kg is placed on a rough inclined plane of inclination ...

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  13. A body is pushed up on a rough inclined plane making an angle 30^@ to...

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  14. The upper half an inclined plane of inclination theta is perfectly smo...

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  15. A body is moving up an inclined plane of angle  theta with an initial ...

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  16. A block of mass m is pulled along a horizontal surface by applying a f...

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  17. A body is moving down along inclined plane of angle of inclination q. ...

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  18. A block of mass m is placed on a surface with a vertical cross section...

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  19. The force required to move a body up a rough inclined plane is double ...

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  20. A rocket is fired vertically from the earth with an acceleration of 2g...

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