Home
Class 12
PHYSICS
A rifle man, who together with his rifle...

A rifle man, who together with his rifle has a mass of `100 kg,` stands on a smooth surface and fires `10` shots horizontally. Each bullet. has a mass `10 g` and a muzzle velocity of `800 m//s`,
a. What velocity does the rifle man acquire at the end of `10` shots?
b. If the shots are fired in `10 s`, what will he the average force exerted on him?
c. Compare his kinetic energy with that of `10` bullets

A

`-1.6ms^(-1),8N`

B

`-0.08ms^(-1),16N`

C

`-0.8ms^(-1),16N`

D

`-1.6ms^(-1),16N`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 2 SECTION-B :- Pulley Block System|7 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 2 SECTION-C :- Pseudo force, Weighing Machine|2 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 1 SECTION-F :- Direction of friction, Pulley Block system on horizontal plane, Pulley Block system on inclined plane, Two Block system, Two Block on Inclined plane|12 Videos
  • MODERN PHYSICS -1

    MOTION|Exercise EXERCISE-4 ( LEVEL- II)|39 Videos
  • NLM & FRICTION

    MOTION|Exercise EXERCISE-4 ( LEVEL-II)|15 Videos

Similar Questions

Explore conceptually related problems

A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally, in 5s. Each bullet has a mass of 10 g with a muzzle velocity of 800 ms^(-1) . The final velocity acquired by the person and the average force exerted on the person are

A 10 gram bullet is shot from a 2 kg gun with a velocity of 400 m//s . What is the speed of recoil of the gun ?

A bullet of mass 10 g is fired with a velocity of 100 m/s from a rifle of mass 2.5 kg, the recoil velocity of the rifle is

A bullet of mass 20gm is fired from a riffle of mass 8 kg with a velocity of 100m//s . The velocity of recoil of the rifle is

The bullet of 5 g is shot from a gun of mass 5 kg. The muzzle velocity of the bullet is 500 m//s .The recoil velocity of the gun is

What travels faster : a rifle bullet or the sound of the shot fired from it ?

A rifle fires a bullet of 60 g with a velocity of 50 m/s. The velocity of recoil of rifle is 2 m/s. The mass of rifle is

A bullet is fired from a rifle which recoils after firing. The ratio of the kinetic energy of the rifle to that of the bullet is

MOTION-NEWTON'S LAWS OF MOTION & FRICTION -Exercise - 2 SECTION-A:- String Constrained, Wedge Constrained, Newtons Law theory Question, Equillibrium Questions (Normal and Tension), Problems with Acceleration (F=ma), Wedge problems
  1. In the following figure, the object of mass m is held at rest by a hor...

    Text Solution

    |

  2. In accordance with Newton’s third law of motion -

    Text Solution

    |

  3. A man of mass 50 kg carries a bag of weright 40 N on his shoulder. The...

    Text Solution

    |

  4. In the given figure, pulleys and strings are massless. For equilibrium...

    Text Solution

    |

  5. A flexible chain of weight W hangs between two fixed points A & B whic...

    Text Solution

    |

  6. Two masses m and M are attached to the strings as shown in the figure....

    Text Solution

    |

  7. The velocity acquired by a mass m in travelling a certain distance d s...

    Text Solution

    |

  8. A body A mass m(1) exerts a force on another body B of mass m(2) . If ...

    Text Solution

    |

  9. A surface is hit elastically and normally by n bals per unit time, all...

    Text Solution

    |

  10. A block of weight W is supported by three strings as shown in figure. ...

    Text Solution

    |

  11. Three forces vec(F)(1)=(hat(i)+4hat(j))N,vec(F)(2)=(2hat(i)-4hat(k))N ...

    Text Solution

    |

  12. The momentum p of an object varies with time (t) as shown in figure. T...

    Text Solution

    |

  13. An object of mass 2 kg at rest at origin starts moving under the actio...

    Text Solution

    |

  14. A rifle man, who together with his rifle has a mass of 100 kg, stands ...

    Text Solution

    |

  15. A bullet is fired from a gun. The force on the bullet is given by F=60...

    Text Solution

    |

  16. An object of mass 3 kg is at rest. Now a force of vec F = 6 t^2 hat...

    Text Solution

    |

  17. A block of mass m is placed on a smooth wedge of inclination theta. T...

    Text Solution

    |

  18. Arrangement of two block system is as shown. The net force acting on 1...

    Text Solution

    |

  19. Figure shows two blocks connected by a light inextensible string as sh...

    Text Solution

    |

  20. A lift is moving down with an acceleration equal to the acceleration d...

    Text Solution

    |