Home
Class 12
PHYSICS
A uniform disk, a thin hoop (ring), and ...

A uniform disk, a thin hoop (ring), and a uniform sphere, all with the same mass and same outer radius, are each free to rotate about a fixed axis through its center. Assume the hoop is connected to the rotation axis by light spokes. With the objects starting from rest, identical forces are simultaneously applied to the rims, as shown. Rank the objects according to their angular momentum after a given time t, least to greatest.

A

all tie

B

disk, hoop, sphere

C

hoop, disk, sphere

D

hoop, sphere, disk

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Action and reaction are forces acting simultaneously and acting on same object.

Which forces needed for the rotational motion about a fixed axis?

If we change the axis of rotation does the magnitude of angular momentum change?

Four rigid bodies, each with the same mass and radius, are spinning freely with the same angular momentum. Which object requires the maximum work to stop it ?

How many degrees of freedom does a rotational motion about fixed axis?

Derive the equation of angular momentum in the case of rotational motion about a fixed axis.

A sector cut from a uniform disk of radius 12cm and a uniform rod of the same mass bent into shape of an arc are arranged facing each other as shown in the figure. If center of mass of the combination is at the origin, what is the radius of the arc?

A circular disc of radius r and mass m rotates about the axis passing through the centre and perpendicular to its plane. What will if rotational kinetic energy?

If the speed of rotation of earth about its axis increases, then the weight of the body at the equator will

Torques of equal magnitude are applied to a hollow cylinder and a solid sphere, both having the same mass and radius. The cylinder is free to rotate about its standard axis of symmetry, and the sphere is free to rotate about an axis passing through its centre. Which of the two will acquire a greater angular speed after a given time.

ALLEN -TEST PAPER-Exercise (Physics)
  1. A rod of mass m and length l is hinged at one of its ends A as shown i...

    Text Solution

    |

  2. A massless rope is wrapped around a ring (with a groove along its circ...

    Text Solution

    |

  3. A uniform disk, a thin hoop (ring), and a uniform sphere, all with the...

    Text Solution

    |

  4. A uniform solid cylindrical roller of mass 'm' is being pulled on a ho...

    Text Solution

    |

  5. A solid cylinder is rolling down the inclined plane without slipping. ...

    Text Solution

    |

  6. In the following figure r(1) and r(2) are 5cm and 30cm repectively. If...

    Text Solution

    |

  7. A small sphere of mass 1 kg is moving with a velocity (6hat(i)+hat(j)...

    Text Solution

    |

  8. A uniform solid sphere of mass M=1 kg and redius R=50 cm is projected ...

    Text Solution

    |

  9. In Fig a sphere of radius 2 m rolls on a plank. The accelerations of t...

    Text Solution

    |

  10. A thin uniform rod AB of mass 1 kg moves translationally with accelera...

    Text Solution

    |

  11. The figure shows an isosceles triangle plate of mass M and base L. T...

    Text Solution

    |

  12. The figure shows an isosceles triangle plate of mass M and base L. T...

    Text Solution

    |

  13. A pulley is connected to the ceiling of an elevator by a massless rod....

    Text Solution

    |

  14. Figure shows the variation of the moment of inertia of a uniform rod, ...

    Text Solution

    |

  15. Four rigid bodies, each with the same mass and radius, are spinning fr...

    Text Solution

    |

  16. Particles of masses m,2m,3m,…….nm grams are placed on the same line at...

    Text Solution

    |

  17. A disc of the radius R is confined to roll without slipping at A and B...

    Text Solution

    |

  18. A solid cylinder C and a hollow pipe P of same diameter are in contact...

    Text Solution

    |

  19. A ball of mass m collides horizontally with a stationary wedge on a ro...

    Text Solution

    |

  20. Shown in the figure is a system of three particles of mass 1 kg, 2 kg ...

    Text Solution

    |