Home
Class 12
PHYSICS
A smooth sphere A is moving on a frictio...

A smooth sphere `A` is moving on a frictionless horizontal plane with angular speed `omega_(A)` and `omega_(B)`, respectively. Then

A

`omega_(A) lt omega_(B)`

B

`omega_(A) = omega_(B)`

C

`omega_(A) = omega`

D

`omega_(B) = omega`

Text Solution

Verified by Experts

The correct Answer is:
C

As the spheres are smooth, there will be no transfer of angular momentum. Thus, A, after collision, will remain with its initial angular momentum.
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive) (MULTIPLE OPTIONS CORRECT TYPE)|17 Videos
  • ROTATIONAL MOTION

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive) (LINKED COMPREHENSIVE TYPE)|7 Videos
  • ROTATIONAL MOTION

    VMC MODULES ENGLISH|Exercise JEE MAIN (ARCHIVE)|58 Videos
  • REVISION TEST-2 JEE

    VMC MODULES ENGLISH|Exercise PHYSICS|25 Videos
  • SIMPLE HARMONIC MOTION

    VMC MODULES ENGLISH|Exercise 7-previous year question|46 Videos

Similar Questions

Explore conceptually related problems

A smooth sphere A is moving on a frictionless horizontal plane with angular speed omega and centre of mass velocity upsilon . It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are omega_A and omega_B respectively. Then

If two disc of moment of inertia l_(1) and l_(2) rotating about collinear axis passing through their centres of mass and perpendicular to their plane with angular speeds omega_(1) and omega_(2) respectively in opposite directions are made to rotate combinedly along same axis, then the magnitude of angular velocity of the system is

Two discs A and B are in contact and rotating with angular velocity with angular velocities omega_(1) and omega_(2) respectively as shown. If there is no slipping between the discs, then

solid sphere of radius r is gently placed on a rough horizontal ground with an initial angular speed omega_(0) and no linear velocity. If the coefficient of friction is mu , find the time t when the slipping stops. in addition state the linear velocity v and angular velocity omega at the end of slipping

A uniform rod of mass M and length L highed at centre is rotating in horizontal plane with angular speed omega_(0) now two object each of mass m are kept on rod near thhe hinge on both sides. They starts sliding towards ends. Find omega of rod finally

A solid sphere of radius R is set into motion on a rough horizontal surface with a inear speed v_(0) in forward direction and an angular with a linear speed v_(0) in forward directioin and an angular velocity omega_(0)=v_(0)//2R in counter clockwise direction as shown in figure. If coefficient of friction mu then find a. the time after which sphere starts pure rolling, b. the linear speed of sphere when it starts rolling and c. the work down by friction over a long time.

A uniform bar of length 6a and mass 8m lies on a smooth horizontal table. Two point masses m and 2m moving in the same horizontal plane with speeds 2v and v , respectively, strike the bar (as shown in the figure) and stick to the bar after collision. Denoting angular velocity (about the centre of mass), total energy and centre of mass velocity by omega , E and V_(C) , respectively, we have after collision

A disc of radius R is moving on a rough horizontal surface with velocity v and angular speed omega at an instant as shown in figure. Choose the correct statement.

A and B are moving in two circular orbits with angular velocity 2 omega and omega respectively. Their position are shown at t = 0. Find the time at which they will meet for 1st time

Two discs of moments of inertia I_(1) and I_(2) about their respective axes (normal to the disc and passing through the centre), and rotating with angular speed omega_(1) and omega_(2) are brought into contact face to face with their axes of rotation coincident . What is the angular speed of the two-disc system ?

VMC MODULES ENGLISH-ROTATIONAL MOTION -JEE Advanced (Archive) (SINGLE OPTION CORRECT TYPE)
  1. A mass M moving with a constant velocity parallel to the X-axis. Its a...

    Text Solution

    |

  2. Let l be the moment of inertia of a uniform square plate about an axi...

    Text Solution

    |

  3. A smooth sphere A is moving on a frictionless horizontal plane with an...

    Text Solution

    |

  4. A cubical box of side L rests on a rough horizontal surface with coeff...

    Text Solution

    |

  5. A thin wire of length L and uniform linear mass density rho is bent in...

    Text Solution

    |

  6. An equilateral triangle ABC formed from a uniform wire has two small i...

    Text Solution

    |

  7. A cylinder rolls up an inclined plane, reaches some height and then ro...

    Text Solution

    |

  8. A circular platform is free to rotate in a horizontal plane about a ve...

    Text Solution

    |

  9. Consider a body, shown in Fig. consisting of two identical balls, each...

    Text Solution

    |

  10. A particle undergoes uniform circular motion. About which point on the...

    Text Solution

    |

  11. A horizontal circular plate is rotating about a vertical axis passing ...

    Text Solution

    |

  12. A disc is rolling without slipping with angular velocity omega. P and ...

    Text Solution

    |

  13. A particle is confined to rotate in a circular path decreasing linear ...

    Text Solution

    |

  14. A solid sphere of mass M and radius R having moment of inertia I about...

    Text Solution

    |

  15. A small object of uniform density rolls up a curved surface with an in...

    Text Solution

    |

  16. If the resultant of all the external forces acting on a system of part...

    Text Solution

    |

  17. A block of base 10cmxx10cm and height 15 cm is kept on an inclind plan...

    Text Solution

    |

  18. A small mass m is attached to a massless string whose other end is fix...

    Text Solution

    |

  19. A thin uniform rod, pivoted at O, is rotating in the horizontal plane ...

    Text Solution

    |

  20. Two identical discs of same radius R are rotating about their axes in ...

    Text Solution

    |