Home
Class 11
PHYSICS
A very small cube of mass 2kg is placed ...

A very small cube of mass 2kg is placed on the surface of a funnel as shown in figure. The funnel is rotating about its vertical axis of symmetry with angular velocity `omega`. The wall of funnel makes an angle `37^(@)` with horizontal. The distance of cube from the axis of rotation is 20 cm and friction coefficient is `mu` (Take `g = 10 m//s^(2)`)

The friction force acting between the block and surface (if `mu = 0.3`) of funnel at `omega = 5 rad//s` is :

A

6.6 N

B

4 N

C

2.2 N

D

zero

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • FORCE ANALYSIS

    ANURAG MISHRA|Exercise Matching type|13 Videos

  • FORCE ANALYSIS

    ANURAG MISHRA|Exercise Level-2|73 Videos

  • DESCRIPTION OF MOTION

    ANURAG MISHRA|Exercise Level-3|34 Videos

  • IMPULSE AND MOMENTUM

    ANURAG MISHRA|Exercise matching|3 Videos

Similar Questions

Explore conceptually related problems

A very small cube of mass 2kg is placed on the surface of a funnel as shown in figure. The funnel is rotating about its vertical axis of symmetry with angular velocity omega . The wall of funnel makes an angle 37^(@) with horizontal. The distance of cube from the axis of rotation is 20 cm and friction coefficient is mu (Take g = 10 m//s^(2) ) The maximum value of angular velocity for which no relative slipping occur and also direction of frictional force is : (take mu = 2//3 )

A very small cube of mass 2kg is placed on the surface of a funnel as shown in figure. The funnel is rotating about its vertical axis of symmetry with angular velocity omega . The wall of funnel makes an angle 37^(@) with horizontal. The distance of cube from the axis of rotation is 20 cm and friction coefficient is mu (Take g = 10 m//s^(2) ) The mimimum value of angular velocity for which relative slipping occurs and also the direction of frictional force acting mu = 2//3 :

A circular of radius 20 cm is rotating about its own axis at an angular velocity omega . The angular velocity of a particle 'A' which is at a distance 10 cm from the axis of rotation is

A cylinder full of water is rotating about its own axis with uniform angular velocity omega . Then the shape of free surface of water will be

Consider a cube of side 'a' as shown. Eight point charges are placed at the corners. The cube is rotated about the centroidal axis with constant angular velocity omega :

A ring of radius r is rotating about a vertical axis along its diameter with constant angular velocity omega.A read of mass m remains at rest w.r.t. ring at the position shown in figure. Then w^(2) is:

A mass m is attached to a rigid rod of negligible mass as shown in figure. The system is pivoted at point O and rotates about the indicated z -axis with angular velocity vec(omega) , maintaining a fixed angle theta with the axis.

A ring of mass m and radius R is being rotated about its axis with angular velocity omega . If a increases then tension in ring

If omega_(E ) is the angular velocity of the earth rotating about its own axis and omega _(H) is the angular velocity of the hour of a clock , then

ANURAG MISHRA-FORCE ANALYSIS-Level-3
  1. The figure shows a rod which startsm rotating with angular acceleratio...

    Text Solution

    |

  2. The figure shows a rod which startsm rotating with angular acceleratio...

    Text Solution

    |

  3. A very small cube of mass 2kg is placed on the surface of a funnel as ...

    Text Solution

    |

  4. A very small cube of mass 2kg is placed on the surface of a funnel as ...

    Text Solution

    |

  5. A very small cube of mass 2kg is placed on the surface of a funnel as ...

    Text Solution

    |

  6. A very small cube of mass 2kg is placed on the surface of a funnel as ...

    Text Solution

    |

  7. A car is moving with speed v and is taking a turn on a circular road o...

    Text Solution

    |

  8. A car is moving with speed v and is taking a turn on a circular road o...

    Text Solution

    |

  9. A car is moving with speed v and is taking a turn on a circular road o...

    Text Solution

    |

  10. A body of mass m=1.8 kg is placed on an inclined plane, the angle of i...

    Text Solution

    |

  11. A body of mass m=1.8 kg is placed on an inclined plane, the angle of i...

    Text Solution

    |

  12. A body of mass m=1.8 kg is placed on an inclined plane, the angle of i...

    Text Solution

    |

  13. A lift can move upward or downward. A light inextensible string fixed ...

    Text Solution

    |

  14. A lift can move upward or downward. A light inextensible string fixed ...

    Text Solution

    |

  15. A lift can move upward or downward. A light inextensible string fixed ...

    Text Solution

    |

  16. A shot putter with a mass of 80 kg pushes the iron ball of mass of 6 k...

    Text Solution

    |

  17. A shot putter with a mass of 80 kg pushes the iron ball of mass of 6 k...

    Text Solution

    |

  18. A shot putter with a mass of 80 kg pushes the iron ball of mass of 6 k...

    Text Solution

    |

  19. In the figure shown, the mass of the trolley is 100 kg and it can move...

    Text Solution

    |

  20. In the figure shown, the mass of the trolley is 100 kg and it can move...

    Text Solution

    |