Home
Class 12
PHYSICS
In the following figure, a sphere of rad...

In the following figure, a sphere of radius 3m rolls on a plank. The accelerations of the sphere and the plank. The accelerations of the sphere and the plank are indicated. The value of `alpha` is

A

`3rad//s^(2)`

B

`6rad//s^(2)`

C

`3rad//s^(2)` (opposite to the direction shown in figure)

D

`1rad//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

In Fig a sphere of radius 2 m rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of alpha is

A hollow sphere starts pure rolling from rest as shown. The acceleration of centre of mass of sphere is

A sphere rolls down on an inclied plane of inclination theta . What is the acceleration as the sphere reaches bottom ?

A sphere rolls down on an inclined plane of inclination q. What is the acceleration as the sphere reaches bottom?

A plank of mass m_(1) with a uniform solid sphere of mass m_(2) placed on it rests and a force F is applied to the plank. The acceleration of the plank provided there is no sliding between the plank and the sphere is (F/(m_(1)+n/7m_(2))) then the value of n is

A plank of mass M is placed on a rough horizontal force F is applied on it A man of mass m rens on the plank find the acceleration of the man so that the plank does not move on the surface . The coefficent of friction between the plank and the surface is mu Assume that the man does not slip on the plank

A boy pushes a cylinder of mass M with the help of a plank of mass m as shown in figure. There is no slipping at any contact. The horizontal component of the force applied by the boy on the plank is F. Find (a) The acceleration of the centre of the cylinder (b) The friction force between the plank and the cylinder

ALLEN-TEST PAPER-Exercise (Physics)
  1. The potential energy (in joules ) function of a particle in a region o...

    Text Solution

    |

  2. AB is a quarter of a smooth horizontal circular track of radius R,A pa...

    Text Solution

    |

  3. The potential energy of a particle of mass 1 kg moving in X-Y plane is...

    Text Solution

    |

  4. A block of mass m is pushed up against a spring, compressing it a dist...

    Text Solution

    |

  5. A train of mass 100 metric tons is ascending uniformly on an incline o...

    Text Solution

    |

  6. in which fo the following cases the centre of mass of a rod is certain...

    Text Solution

    |

  7. A man of mass 80 kg stands on a plank of mass 40 kg. The plank is lyin...

    Text Solution

    |

  8. A monkey of mass 20 kg rides on a 40 kg trolley moving at a constant s...

    Text Solution

    |

  9. A ball A moving with a velocity 5 m/s collides elastically with anothe...

    Text Solution

    |

  10. The angular speed of a star spinning about its axis increases as the s...

    Text Solution

    |

  11. A mass m=1 kg hangs from the wheel of radius R=1 m .When released fro...

    Text Solution

    |

  12. In the following figure, a sphere of radius 3m rolls on a plank. The a...

    Text Solution

    |

  13. Three parallel forces are acting on a rod at distances of 40 cm, 60 cm...

    Text Solution

    |

  14. A cylinder rolls up an inclined plane, reaches some height, and then r...

    Text Solution

    |

  15. Two blocks are resting on ground with masses 5 kg and 7 kg. A spring c...

    Text Solution

    |

  16. A body is dropped from height 8m. After striking the surface it rises ...

    Text Solution

    |

  17. A uniform equilateral triangular lamina of side a has mass m. Its mome...

    Text Solution

    |

  18. For a particle rotating in a vertical circle with uniform speed, the m...

    Text Solution

    |

  19. A small of mass m starts from rest at the position shown and slides al...

    Text Solution

    |

  20. A block is released from rest from top of a rough curved track as show...

    Text Solution

    |