Home
Class 11
PHYSICS
An initially stationary device lying on ...

An initially stationary device lying on a frictionless floor explodes into two pieces and slides across the floor. One piece is moving in positive x-direction then other piece is moving in

A

positive y- direction

B

negative y-direction

C

negative x-direction

D

at angle from x-direction

Text Solution

Verified by Experts

The correct Answer is:
C
( c) From law of conservation of momentum,
`p_(i)=p_(f)`
and initial momentum, `p_(i)=mu=m(0)=0`
`therefore p_(f)` should also be zero.
Hence, other piece will move in negative x-direction.
Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    DC PANDEY|Exercise Check point 5.2|15 Videos

  • LAWS OF MOTION

    DC PANDEY|Exercise Check point 5.3|20 Videos

  • LAWS OF MOTION

    DC PANDEY|Exercise example|86 Videos

  • KINEMATICS 1

    DC PANDEY|Exercise INTEGER_TYPE|15 Videos

  • LAWS OF THERMODYNAMICS

    DC PANDEY|Exercise Level 2 Subjective|18 Videos

Similar Questions

Explore conceptually related problems

An initially stationary device lying on a frictionless floor explodes into two pieces and slides across the floor one piece is moving in positive x direction then other peice is moving in

An initially stationary box on a frictionless floor explodes into two pieces, piece A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x-axis. Graph of position versus time for the two pieces are given Based on the above question. Match column A with the column B.

An initially stationary box on a frictionless floor explodes into two pieces, piece A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x -axis. Graph of position versus time for the two pieces are given Which graphs pertain to physically possible explosion?

An initially stationary box on a frictionless floor explodes into two pieces, piece A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x- axis. Graph of position versus time for the two pieces are given. Which graphs pertain to physically possible explosions ?

An initially stationary box on a frictionless floor explodes into two pieces, piece A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x-axis. Graph of position versus time for the two pieces are given Which graphs pertain to physically possible explosios?

An initially stationary box on a frictionless floor explodes into two pieces, piece A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x-axis. Graph of position versus time for the two pieces are given If following graphs are possible then, in which of the following cases external impulse must be acting on the box?

An initially stationary box on a frictionless floor explodes into two pieces, piece A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x -axis. Graph of position versus time for the two pieces are given If graphs are possible then. in which of the following case, external impulse must be acting on the box?

Comprehension # 8 An initially stationary box on a frectionless floor explodes into two places, places A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x-axis. Graph of position versus time for the two pieces are given. Which graphs pertain to physically possible explosions ?

An initially stationary box on a frectionless floor explodes into two places, places A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x-axis. Graph of position versus time for the two pieces are given. Baed on the above question, Match column A with the column B. {:(,"Column A",,"Column B (Graph number)",),((P),m_(A) = m_(B),,I,),((Q),m_(A) gt m_(B),,II,),((R ),m_(A) lt m_(B),,III,),(,,,IV,),(,,,V,),(,,,VI,):}

An initially stationary box on a frectionless floor explodes into two places, places A with mass m_(A) and piece B with mass m_(B) . Two pieces then move across the floor along x-axis. Graph of position versus time for the two pieces are given. If all the graphs are possible then, in which of the following cases external force must be acting on the box :-

DC PANDEY-LAWS OF MOTION-Check point 5.1
  1. Which of Newton's laws of motion explain the concept of inertia ?

    Text Solution

    |

  2. Inertial of an object is directly dependent on

    Text Solution

    |

  3. A body of mass 6 kg is acted on a by a force so that its velocity chan...

    Text Solution

    |

  4. The momentum P ( in kg ms^(-1)) of a particle is varying with time t (...

    Text Solution

    |

  5. A body is acted upon by balanced forces

    Text Solution

    |

  6. A force F=(6hati-8hatj+10hatk)N produces acceleration of sqrt(2) ms^(-...

    Text Solution

    |

  7. A force of 72 dyne is inclined to the horizontal at an angle of 60^(@)...

    Text Solution

    |

  8. A constant force acting on a body of mass 3 kg changes its speed from ...

    Text Solution

    |

  9. A body of mass 5kg is acted upon by two perpendicular force 8N and 6N,...

    Text Solution

    |

  10. A bull of mass m is moving towards a player with velocity v. If player...

    Text Solution

    |

  11. A constant retarding force of 50 N is applied to a body of mass 20 kg ...

    Text Solution

    |

  12. A ball of mass 1 kg is dropped from height 9.8 m, strikes with ground ...

    Text Solution

    |

  13. A ball of mass 0.5 kg moving with a velocity of 2 m//s strikes a wall ...

    Text Solution

    |

  14. A ball is moving with speed 20 ms^(-2) collides with a smooth surface...

    Text Solution

    |

  15. A body of mass 5 kg is moving with velocity of v=(2hati+6hatj)ms^(-1) ...

    Text Solution

    |

  16. If impulse/ varies with time t as f (kg ms^(-1))=20t^(2)-40t.The chang...

    Text Solution

    |

  17. An initially stationary device lying on a frictionless floor explodes ...

    Text Solution

    |

  18. A bullet mass 10gm is fired from a gun of mass 1 kg . If the recoil ve...

    Text Solution

    |

  19. A bullet of mass 0.1 kg is fired with a speed of 100 m//sec , the mass...

    Text Solution

    |

  20. A man of mass 60 kg is standing on a horizontal conveyor belt. When th...

    Text Solution

    |