Home
Class 11
PHYSICS
The kinetic energy acquired by a mass m ...

The kinetic energy acquired by a mass m after travelling a fixed distance form rest under the action of constant force is

A

directly proportional to `sqrtm`

B

`directly proportional to m

C

independent of m

D

diectly proportional to `1sqrtm`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The displacement x of a body of mass 10 kg moving in one dimension under the action of a constant force is related to time by the equation t = sqrtx + 3 . Find the work done by the force in first 5 seconds.

A stone of 1 kg is thrown with a velocity of 20 ms^( -1) across the frozen surface of a lake and comes to rest after travelling a distance of 50 m. What is the force of friction between the stone and the ice ?

a particle moves from position vector (3 hati + 2 hat j-6hatk) to the position vector (14hati+13hatj+9hatk) in metres under the action off a constant force of (4hati+hatj+3hatk) newton.Calculate the worrk done by the force.

A car travelling at a speed of 10m/s stops in 4s after the application of brakes. If we assume the retardation to be constant. Find the distance travelled during this time.

An electron and a proton are moving under the influence of mutual forces. In calculating the change in the kinetic energy of the system during motion, one ignores the magnetic force of one on another. This is because.

A car travelling at a speed of 10m/s stops in 4s after the application of brakes. If we assume the retardation to be constant. Find the retardation.

A car of 1000 kg moving with a velocity of 30 m//s stops with uniform acceleration after covering a distance of 50 m on application of brakes. Find the force applied by the brakes on the car and also work done.

MBD-WORK, ENERGY AND POWER-EXAMPLE
  1. A bullet of mass M hits a block of mass M'. The transfer of energy is ...

    Text Solution

    |

  2. One coolie takes two minutes to raise a box from platform to train. An...

    Text Solution

    |

  3. The kinetic energy acquired by a mass m after travelling a fixed dista...

    Text Solution

    |

  4. In a gravitational field, the work done in transporting mass from one ...

    Text Solution

    |

  5. The work done by the varying force in changing the angular displacemen...

    Text Solution

    |

  6. The work done by the tension T in t above process is

    Text Solution

    |

  7. Two bodies of unequal mass are moving in the same direction with equal...

    Text Solution

    |

  8. When K.E. of a body is increased by 300 %, the momentum of the body is...

    Text Solution

    |

  9. Two solid subber balls A and B having masses 0.2 and 0.4 are moving in...

    Text Solution

    |

  10. If a stone is thrown up vertically and return to ground, its potential...

    Text Solution

    |

  11. A ball is dropped from a height of 20 m and rebounds to a height of 10...

    Text Solution

    |

  12. Two masses of 1g and 9 g are moving with equal kinetic energies. The r...

    Text Solution

    |

  13. Fill in the blanks: Moon going round the earth work is done.

    Text Solution

    |

  14. Fill in the blanks: Wrk done is if a body gets displaced in a direc...

    Text Solution

    |

  15. Fill in the blanks: Unit of work in - is joule.

    Text Solution

    |

  16. Fill in the blanks: is the capacity of doing work.

    Text Solution

    |

  17. Fill in the blanks: Gravitational force is a force.

    Text Solution

    |

  18. Fill in the blanks: One horse power = W.

    Text Solution

    |

  19. Fill in the blanks: In nuclear power plants, the nuclear energy is c...

    Text Solution

    |

  20. Define work

    Text Solution

    |