Home
Class 12
PHYSICS
A block of mass m moves on a horizontal ...

A block of mass `m` moves on a horizontal rough surface with initial velocity `v`. The height of the centre of mass of the block is `h` from the surface. Consider a point `A` on the surface.

A

A)Angular momentum about `A` is `mvh` initially

B

B)Angular momentum about `A` is conserved

C

C)Torque of the forces acting on block is zero about `A`

D

D)Block will eventually stop and angular momentum conservation is not applicable here

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - D) Linked Comprehension Type Questions|20 Videos
  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - E) Assertion-Reason Type Questions|12 Videos
  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - B) Objective Type Questions (One option is correct)|60 Videos
  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D (Assertion and reason))|5 Videos
  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

Asseration : A block of mass m starts moving on a rough horizontal surface with a velocity v. It stops due to friction between the block and the surface after moving through a ceratin distance. The surface is now tilted to an angle of 30^@ with the horizontal and same block is made to go up on the surface with the same initial velocity v. The decrease in the mechanical energy in the second situation is small than the first situation. Reason : The coefficient of friction between the block and the surface decreases with the increase in the angle of inclination.

A solid sphere is thrown on a horizontal rough surface with initial velocity of centre of mass V_0 without rolling. Velocity of its centre of mass when its starts pure rolling is

A block of mass m is moving on a rough horizontal surface. mu is the coefficient of kinetic friction between the block and the surface. What is the net force exerted by the surface on the block?

What is the value of applied force ‘F’ which is exerted at an angle theta with the horizontal on a block of mass ‘m’ placed on a horizontal rough surface, if the coefficient of static friction between the block and the surface is , such that the block is on the verge of moving horizontally?

A block of mass 10 kg, moving with acceleration 2m//s^(2) on horizontal rough surface is shown in figure

A uniform cube of mass m and edge a moves on a horizontal surface along the positive x-axis, with initial velocity v_(0) . Then

A block of mass m is placed at rest on a horizontal rough surface with angle of friction phi . The block is pulled with a force F at an angle theta with the horizontal. The minimum value of F required to move the block is

A block of mass m is placed at rest on a horizontal rough surface with angle of friction phi . The block is pulled with a force F at an angle theta with the horizontal. The minimum value of F required to move the block is

A block of mass 10 kg is moving on a rough surface as shown in figure. The frictional force acting on block is :-

A block of mass m is attached to one end of a mass less spring of spring constant k. the other end of spring is fixed to a wall the block can move on a horizontal rough surface. The coefficient of friction between the block and the surface is mu then the compession of the spring for which maximum extension of the spring becomes half of maximum compression is .

AAKASH INSTITUTE ENGLISH-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Assignment (Section - C) Objective Type Questions (More than one option are correct)
  1. Two projectiles collide in air, then for just after and before the col...

    Text Solution

    |

  2. Two particles A and B of masses 2kg and 3kg moving on a smooth horizon...

    Text Solution

    |

  3. A particle strikes a smooth horizontal surface at an angle theta gt 0 ...

    Text Solution

    |

  4. A girl throws the ball with horizontal velocity 2m//s at the moment t=...

    Text Solution

    |

  5. A fan is switched on and it accelerates at a constant angular accelera...

    Text Solution

    |

  6. A block of mass m is connected to another block of mass M by a massles...

    Text Solution

    |

  7. A disc of mass M and radius R as shown in figure has some points on it...

    Text Solution

    |

  8. A rod of mass m and length L is pivoted at the bottommost point O and ...

    Text Solution

    |

  9. A rod of mass m and length L is pivoted at a point O and kept in horiz...

    Text Solution

    |

  10. A horizontal rod of mass M and length L is tied to two verticle string...

    Text Solution

    |

  11. A disc of radius R is moving on a rough horizontal surface with veloci...

    Text Solution

    |

  12. A disc of given some velocity up the incline so that it goes up, stops...

    Text Solution

    |

  13. A ring of mass m and radius R is placed on a rough horizontal surface ...

    Text Solution

    |

  14. A solid sphere of mass m and radius R is released from top of an incli...

    Text Solution

    |

  15. On an uniform cylinder of mass m and radius R a constant horizontal fo...

    Text Solution

    |

  16. A particle of mass m is moving with constant velocity v(0) along the l...

    Text Solution

    |

  17. A disc of mass m and radius R rotating with angular speed omega(0) is ...

    Text Solution

    |

  18. A block of mass m moves on a horizontal rough surface with initial vel...

    Text Solution

    |

  19. A uniform rod of length l and mass 2 m rests on a smooth horizontal ta...

    Text Solution

    |

  20. A disc of mass m and radius R is kept on a smooth horizontal surface w...

    Text Solution

    |