Home
Class 11
PHYSICS
A bullet is fired from a rifle. If the r...

A bullet is fired from a rifle. If the rifle recoils freely, then the kinetic energy of the rifle, is

A

less than that of the bullet

B

more than that of the bullet

C

same as that of the bullet

D

equal or less than that of the bullet

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Centre of mass

    MODERN PUBLICATION|Exercise Exercise|30 Videos
  • Dynamics of Circular Motion

    MODERN PUBLICATION|Exercise Exercise|81 Videos

Similar Questions

Explore conceptually related problems

Where from the kinetic energy of falling rain drops come?

A proton and an alpha particle of the same velocity enter in turn a region of unifrom magnetic field acting a plane perpendicular to the magnetic field. Deduce the ratio of the radii of the circular paths described by the particles. Explain why kinetic energy of the particle after emerging from the magnetic field remains unaltered.

In a hydrogen atom, the electron and proton are bound at a distance of about 0.53 A. (a) Estimate the potential energy of the system in eV, taking the zero of the potential energy at infinite separation of the electron from proton. (b) What is the minimum work required to free the electron, given that its kinetic energy in the orbit is half the magnitude of potential energy obtained in (a)?

In a hydrogen atom, the electron and proton are bound at a distance of about 0.53 A: (a) Estimate the potential energy of the system in eV, if the zero of potential energy is taken at 1.06 overset @A separation of the electron from proton? (b) What is the minimum work required to free the electron, given that its kinetic energy in the orbit is half the magnitude of potential energy obtained in (a)?

A bullet of mass 10g is fired from a rifle. The bullet takes 0.003 seconds to move through its barrel and leaves with a velocity of 300m/s. What is the force exerted on the bullet by the rifle?

A ball of mass 0.5 kg slows down from a speed of 5ms^-1 to 3ms^-1 , calculate the change in the kinetic energy of the ball.

A bullet of mass 50 g is fired from a gun. If the bullet acquires a velocity of 100 m s^(1) in 0.1 second, what is the recoil force on the gun?

An arrow is shot from a bow, from where does it get kinetic energy?

A 2 kg ball is dropped from a height of 1. Find its kinetic energy just before hitting ground.

A skater of mass 50 kg moves down from A to B. The frictional forces are absent. What is the kinetic energy at B?

MODERN PUBLICATION-Competitive Exam Question-Exercise
  1. What is non-conservative force?

    Text Solution

    |

  2. A gun fires a bullet of mass 50 g with a velocity of 30 m s^(-1). Beca...

    Text Solution

    |

  3. A bullet is fired from a rifle. If the rifle recoils freely, then the ...

    Text Solution

    |

  4. Rocket works on the principle of conservatin of:

    Text Solution

    |

  5. A simple pendulum is set up in a trolley which is moving with an accel...

    Text Solution

    |

  6. The forces, which meet at one point but their lines of action do not i...

    Text Solution

    |

  7. In ordinary terrestrial experiments, the observer in an inertial frame...

    Text Solution

    |

  8. If the normal force is doubled, then coefficient of friction is

    Text Solution

    |

  9. A body of mass m is placed on a rough surface with coefficient of fric...

    Text Solution

    |

  10. When two surface are coated with a lubricant, then they :

    Text Solution

    |

  11. A wheel has an angular acceleration of 3 rad s^(-2) and an initial ang...

    Text Solution

    |

  12. A car moving on a circular path of length 4 pi metre experience a forc...

    Text Solution

    |

  13. A particle revolves round a circular path. The acceleration of the par...

    Text Solution

    |

  14. If the radii of circular paths of two particles of same masses are in ...

    Text Solution

    |

  15. The acceleration of a body in a non-uniform circular motion is 5 m s^(...

    Text Solution

    |

  16. An aircraft executes a horizontal loop with a speed of 150 m s^(-1) wi...

    Text Solution

    |

  17. A stone tied to a string is rotated with a uniforms speed in a vertica...

    Text Solution

    |

  18. A body is allowed to slide down a frictionless track freely under grav...

    Text Solution

    |

  19. Assertion : To keep a body moving with a uniform velocity along a stra...

    Text Solution

    |

  20. Assertion : If two balls are released simultaneously from a certain he...

    Text Solution

    |