Home
Class 11
PHYSICS
A ball of mass m=1kg strikes a smooth ho...

A ball of mass `m=1kg` strikes a smooth horizontal floor as shown in figure. The impulse exerted on the floor is

A

(a) `6.25Ns`

B

(b) `1.76Ns`

C

(c) `7.8Ns`

D

(d) `2.2Ns`

Text Solution

Verified by Experts

The correct Answer is:
A
Component parallel to plane remains unchanged.
`:. 0.8v=3`
or `v=(3)/(0.8)=3.75m//s`

`|Deltav|=(4+0.6v)=6.25m//s` (in vertical direction)
`:. Impu lse=|Deltap|=m|Deltav|=6.25N-s`
Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY ENGLISH|Exercise Level 1 Subjective|32 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY ENGLISH|Exercise Level 1 Subjective Questions|1 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY ENGLISH|Exercise Level 1 Assertion And Reason|15 Videos

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY ENGLISH|Exercise Comprehension type questions|15 Videos

  • CIRCULAR MOTION

    DC PANDEY ENGLISH|Exercise Medical entrances s gallery|19 Videos
DC PANDEY ENGLISH-CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION-Level 1 Objective
  1. Two identical blocks A and B of mass m joined together with a massless...

    Text Solution

    |

  2. A ball of mass m moving with velocity v0 collides a wall as shown in f...

    Text Solution

    |

  3. A steel ball is dropped on a hard surface from a height of 1m and rebo...

    Text Solution

    |

  4. A car of mass 500kg (including the mass of a block) is moving on a smo...

    Text Solution

    |

  5. The net force acting on a particle moving along a straight line varies...

    Text Solution

    |

  6. In the figure shown, find out centre of mass of a system of a uniform ...

    Text Solution

    |

  7. From the circular disc of radius 4R two small discs of radius R are cu...

    Text Solution

    |

  8. A block of mass m rests on a stationary wedge of mass M. The wedge can...

    Text Solution

    |

  9. A bullet of mass m hits a target of mass M hanging by a string and get...

    Text Solution

    |

  10. A loaded spring gun of mass M fires a bullet of mass m with a velocity...

    Text Solution

    |

  11. Two bodies with masses m1 and m2(m1gtm2) are joined by a string passin...

    Text Solution

    |

  12. A rocket of mass m0 has attained a speed equal to its exhaust speed an...

    Text Solution

    |

  13. A jet of water hits a flat stationary plate perpendicular to its motio...

    Text Solution

    |

  14. Two identical vehicles are moving with same velocity v towards an inte...

    Text Solution

    |

  15. A ball of mass m=1kg strikes a smooth horizontal floor as shown in fig...

    Text Solution

    |

  16. A small block of mass m is placed at rest on the top of a smooth wedge...

    Text Solution

    |

  17. A square of side 4cm and uniform thickness is divided into four square...

    Text Solution

    |

  18. A boy having a mass of 40kg stands at one end A of a boat of length 2m...

    Text Solution

    |

  19. Three identical particles with velocities v0hati, -3v0hatj and 5v0hatk...

    Text Solution

    |

  20. A mortar fires a shell of mass M which explodes into two pieces of mas...

    Text Solution

    |