Home
Class 12
PHYSICS
If the momentum of a body is increased b...

If the momentum of a body is increased by `20%`, find the increase in kinetic energy.

Text Solution

Verified by Experts

`K=P^2/(2m),K^1=(((120p)/(100))/(2m))^2=1.44 p^2/(2m)=1.44 k`
therefore DeltaK=K^1-K=0.44K=44%`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    MBD PUBLICATION|Exercise QUESTION BANK|151 Videos

  • COMMUNICATION SYSTEM

    MBD PUBLICATION|Exercise QUESTION BANK|174 Videos

Similar Questions

Explore conceptually related problems

The momentum of a body decreases by 20% , the percentage decrease in Kinetic energy will be

If the momentum of a body increases by 20% , the percentage increases in K.E. will be

If the momentum of certain body be increased by 50% , it's K.E. will increase by

If the angular velocity of a body increases by 20% . At what percentage the kinetic energy of rotation will increase?

By what factor the momentum of a body will change so that its kinetic energy is doubled ?

The kinetic energy of the body is increased by 300% . The percentage increases in momentum of the body will be

If the momentum of a body is doubled, how will its kinetic energy vary ?

MBD PUBLICATION-CIRCULAR MOTION-QUESTION BANK
  1. The angular velocity of a fly wheel increases 0 to 40 rad/s, in 8 secs...

    Text Solution

    |

  2. What is the value of linear velocity if oversettow = 3hati-4hatj+hatk...

    Text Solution

    |

  3. If the momentum of a body is increased by 20%, find the increase in ki...

    Text Solution

    |

  4. A particle is moving in a circle of radius 1.5m. Its speed is increasi...

    Text Solution

    |

  5. A wheel starting from rest is rotating with constant angular accelerat...

    Text Solution

    |

  6. A particle is moving along a circular parth of radius 5m with uniform ...

    Text Solution

    |

  7. A flyover bridge is in the form of a circular arc of radius 39.5m. Wha...

    Text Solution

    |

  8. A body of mass 1 kg is tied to a string and revolved in a horizontal c...

    Text Solution

    |

  9. A proton of mass 1.6xx10^-(27) kg, revolves in a circular path of radi...

    Text Solution

    |

  10. A car is moving with a speed of 30 m/s on a circular path of radius 50...

    Text Solution

    |

  11. A car is moving on a circular track of diameter 72m with a speed of 6...

    Text Solution

    |

  12. A particle moves along a circle of radius [20/pi] metre with constant ...

    Text Solution

    |

  13. A coin placed on a rotating gramophone disc. remains at rest when it ...

    Text Solution

    |

  14. An electron of mass 9xx10^(-31) kg is revolving in a circular orbit of...

    Text Solution

    |

  15. The earth (mass=6xx10^24 kg), revolves around the sun with angular vel...

    Text Solution

    |

  16. A coin is placed on a rotating turn table rotated with angular speed w...

    Text Solution

    |

  17. The electron in the first orbit of hydrogen atom revolves round the nu...

    Text Solution

    |

  18. A string of length L fixed at one end carries a mass M at the other en...

    Text Solution

    |

  19. The circumference of a circular track is 1.256 km. What is the tangent...

    Text Solution

    |

  20. Without changing the angle of banking, if we want to increase the maxi...

    Text Solution

    |