Home
Class 12
PHYSICS
A machine gun is mounted on a flat rail ...

 A machine gun is mounted on a flat rail car. The gun is firing bullets at the rate of 10 bullets per second each of mass 10 g. The bullets come out with velocity `500 ms^(-1)` from the rear. Calculate the acceleration of the car at the instant when its mas is 200 kg. Also calculate the force at that instant.

A

`0.25 m//"sec"^(2) , 100 N `

B

`0.5 m//"sec"^(2) , 50 N `

C

`0.25 m//"sec"^(2) , 50 N `

D

`0.5 m//"sec"^(2) , 100 N `

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise MOTION IN A PLANE|79 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MOVING CHANGES & MEGNETISM)|95 Videos

  • ATOMS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

A machine gun having a power 27 kW fires .n. bullets per second each of mass 10 gm. If the velocity of each bullet is 300 ms^(-1) , the value of .n. is

A machine gun has a mass of 20kg. It fires 35 g bullets at the rate of 4 bullets per second, with a speed of 400 ms^(-1) . What force must be applied to the gun to keep it in position?

A machine gun fires 360 bullets per minute and each bullet travels with a velocity of 600ms^(-1) . If the mass of each bullet is 5 gm , find the power of the machine gune ?

AAKASH SERIES-APPENDICES (REVISION EXERCISE)-LAW OF MOTION
  1. A 500kg boat has an initial speed of 10 ms^(-1) as it passes under a ...

    Text Solution

    |

  2. A railway flat car, whose mass together with the artillery gun is M, m...

    Text Solution

    |

  3. A machine gun is mounted on a flat rail car. The gun is firing bullets...

    Text Solution

    |

  4. A gun of mass M fires a bullet of mass m, with a Kinetic energy E. The...

    Text Solution

    |

  5. A body of mass 8kg at rest explodes into three parts whose masses are ...

    Text Solution

    |

  6. A gun of mass M fires a bullet of mass m horizontally. The energy of f...

    Text Solution

    |

  7. Two spacemen A and B are floating is gravity free space with zero velo...

    Text Solution

    |

  8. The first & second stage of two stage rocket separately weigh 100 kg a...

    Text Solution

    |

  9. A projectile of mass M is fired so that the horizontal range is 4 km. ...

    Text Solution

    |

  10. A block is kept on the floor of an elevator at rest. The elevator star...

    Text Solution

    |

  11. A body is kept on the floor of a topless lift at rest. The lift starts...

    Text Solution

    |

  12. The maximum tension a rope can withstand is 60 kg.wt. The ratio of max...

    Text Solution

    |

  13. A uniform rope of mass m hangs freely from a ceiling. A bird of mass M...

    Text Solution

    |

  14. Two bodies of masses 4 kg and 6 kg connected by means of a light strin...

    Text Solution

    |

  15. An empty plastic box of mass m is found to accelerate up at the rate o...

    Text Solution

    |

  16. Amonkey of mass 15kg is climbing on a rope with one end fixed to the c...

    Text Solution

    |

  17. A massless string passes around a frictionless pulley whose axis is ho...

    Text Solution

    |

  18. A railway engin of mass 50 tons is pulling a wagon of mass 40 tons wit...

    Text Solution

    |

  19. A light stright fixed at one end to a wooden clamp on a ground passes ...

    Text Solution

    |

  20. Two masses 5 kg and 3 kg are suspended from the ends of an unstretchab...

    Text Solution

    |