Home
Class 11
PHYSICS
A force applied by an engine of a train ...

A force applied by an engine of a train of mass `2.05xx10^6`kg changes its velocity from 5 m/s to 25 m/s in 5 minutes. The power of the engine is

A

1.025 MW

B

2.05 MW

C

5 MW

D

6MW

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY, POWER & COLLISION

    ERRORLESS |Exercise Assertion|30 Videos
  • WORK , ENERGY , POWER AND COLLISION

    ERRORLESS |Exercise Self Evaluation Test|19 Videos

Similar Questions

Explore conceptually related problems

Certain force acting on a 20 kg mass changes its velocity from 5m//s to 2m//s . calculate the work done by the force.

A constant force acts on object of mass 5 kg for a duration of 2s It increases the object's velocity from 3m//s to 7m//s Find the magnitude of the applied force. Now if the force were applied for a duration of 5s what would be the final velocity of object?

A 400kg car attains a speed of 50m/s from rest in 20s. The power developed in the engine will be

An engine of power 58.8 k W pulls a train of mass 2xx10^(5)kg with a velocity of 36 kmh^(-1) . The coefficient of static friction is

A car of mass 1000 kg accelerates uniformly from rest to a velocity of 15 m/s in 5 sec. The average power of the engine during this period in watts is :

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

The velocity of a body of mass 20 kg decreases from 20m//s to 5m//s in a distance of 100 m. Force on the body is:

ERRORLESS -WORK, ENERGY, POWER & COLLISION-Assertion
  1. A force applied by an engine of a train of mass 2.05xx10^6kg changes i...

    Text Solution

    |

  2. Statement-1: A person walking on a horizontal road with a load on his ...

    Text Solution

    |

  3. Assertion : The work done during a round trip is always zero. Reaso...

    Text Solution

    |

  4. Assertion : Work done by friction on a body sliding down an inclined...

    Text Solution

    |

  5. Assertion : When a gas is allowed to expand, work done by gas is pos...

    Text Solution

    |

  6. Assertion: A light body and a heavy body have same momentum. Then they...

    Text Solution

    |

  7. Assertion: The instantaneous power of an agent is measured as the dot...

    Text Solution

    |

  8. Assertion: The change in kinetic energy of a particle is equal to the ...

    Text Solution

    |

  9. Assertion: A spring has potential energy , both when it is compressed ...

    Text Solution

    |

  10. Statement-1:Comets move around the sun in elliptical orbits, the gravi...

    Text Solution

    |

  11. Assertion: Internal forces cannot change linear momentum. Reason: In...

    Text Solution

    |

  12. Assertion : Water at the foot of the water fall is always at differe...

    Text Solution

    |

  13. Assertion : The power of a pump which raises 100 kg of water in 10...

    Text Solution

    |

  14. Assertion: According to law of conservation of mechanical energy chang...

    Text Solution

    |

  15. Assertion : When the force retards the motion of a body, the work do...

    Text Solution

    |

  16. Assertion: In an elastic collision of two bodies , the momentum and en...

    Text Solution

    |

  17. Assertion : A body cannot have energy without possessing momentum but...

    Text Solution

    |

  18. Assertion : Power developed in circular motion is always zero. Reas...

    Text Solution

    |

  19. Assertion : A kinetic energy of a body is quadrupled, when its veloc...

    Text Solution

    |

  20. Assertion: A quick collision between two bodies is more violent that s...

    Text Solution

    |

  21. Assertion : Work done by or against gravitational force in moving a b...

    Text Solution

    |