Home
Class 12
PHYSICS
A bomb initially at rest explodes by it ...

A bomb initially at rest explodes by it self into three equal mass fragments. The velocities of two fragments are `( 3 hati + 2 hatj )` m/s and `(–hati – 4 hatj )` m/s. The velocity of the third fragment is (in m/s)-

A

`2hat(i)+2hat(j)`

B

`2hat(i)-2hat(j)`

C

`-2hat(i)+2hat(j)`

D

`-2hat(i)-2hat(j)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise EFFICIENT|50 Videos

  • WAVE MOTION

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE LEVEL 2 (TRUE FALSE TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

An object of mass 3m splits into three equal fragments. Two fragments have velocities vhatj and v hati . The velocity of the third fragment is

An object of mass 3m splits into three equal fragments. Two fragments have velocities vhatj and v hati . The velocity of the third fragment is

Velocity and acceleration of a particle are v=(2 hati-4 hatj) m/s and a=(-2 hati+4 hatj) m/s^2 Which type of motion is this?

A mud ball at rest explodes into three fragmennts of masses in the ragio 1:2:1 . the two equal masses move with velocities 2hati+5hatj-6hatk and -4hati+3hatj+2hatk . Find the velocity of the find mass.

A block at rest explodes into three equal parts. Two parts start moving along X and Y axes respectively with equal speeds of 10 m/s. Find the initial velocity of the third part.

A shell of mass 20 kg at rest explodes into two fragments whose masses are in the ratio 2 : 3 . The smaller fragment moves with a velocity of 6 m//s . The kinetic energy of the larger fragment is

A shell of mass 20 kg at rest explodes into two fragments whose masses are in the ratio 2 : 3 . The smaller fragment moves with a velocity of 6 m//s . The kinetic energy of the larger fragment is

A shell of mass 5 m, acted upon by no external force and initially at rest , burts into three fragments of masses m, 2 m, 2 m respectively . The first two fragments move in opposite directions with velocites magnitude 2 v and v respectively . The third fragment will

At a certain height a body at rest explodes into two equal fragments with one fragment receiving a horizontal velocity of 10ms^(-1) . The time interval after the explosion for which the velocity vectors of the two fragments become perpendicular to each other is (g=10ms^(-2))

At a certain height a body at rest explodes into two equal fragments with one fragment receiving a horizontal velocity of 10ms^−1. The time interval after the explosion for which the velocity vectors of the two fragments become perpendicular to each other is

VMC MODULES ENGLISH-WORK ENERGY AND POWER -IMPECCABLE
  1. A bomb initially at rest explodes by it self into three equal mass fra...

    Text Solution

    |

  2. A man pushes against a wall but fails to move it. He does

    Text Solution

    |

  3. A body moves a distance of 10 m along a straight line under the action...

    Text Solution

    |

  4. A child is swinging a swing. Minimum and maximum heights fo swing from...

    Text Solution

    |

  5. A body is thrown vertically up with certain initial velocity, the pote...

    Text Solution

    |

  6. A body of mass 2 kg is thrown up vertically with kinetic energy of 490...

    Text Solution

    |

  7. A rod of length L and mass m is kept vertically on the ground. Its pot...

    Text Solution

    |

  8. A particle moves in a straight line with retardation proportional to i...

    Text Solution

    |

  9. Water falls from a height of 60 m at the rate of 15 kg//s to operate a...

    Text Solution

    |

  10. A pump motor is used to deliver water at a certain rate from a given p...

    Text Solution

    |

  11. A machine is delivering constant power to drive a body along a straigh...

    Text Solution

    |

  12. The particle of mass m is moving in a circular path of constant radius...

    Text Solution

    |

  13. A motor of power 60 W draws current 5 A from a source of 15 V. What is...

    Text Solution

    |

  14. An engine pumps up 100kg of water through a height of 10m in 5s. Given...

    Text Solution

    |

  15. A particle of mass 100 g is thrown vertically upwards with a speed of ...

    Text Solution

    |

  16. How much work must work be done by a force on 50 kg body in order to a...

    Text Solution

    |

  17. when the bob of a simple pendulum swings, the work done by tension in ...

    Text Solution

    |

  18. A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1). W...

    Text Solution

    |

  19. A block of mass m=2kg is pulled by a force F=40 N upwards through a h...

    Text Solution

    |

  20. A spring of spring constant 5 xx 10^(3) N//m is stretched initially by...

    Text Solution

    |

  21. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

    Text Solution

    |