Home
Class 11
PHYSICS
The force required to tow a car at const...

The force required to tow a car at constant velocity is directly proportional to velocity. If it requires 160 W to tow a car with a velocity of `4 ms^(-1)`, the power it required to move the car with a velocity of `9 ms^(-1)` is:

A

900 W

B

180 W

C

810 W

D

640 W

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • APPENDICES

    AAKASH SERIES|Exercise WORK POWER ENERGY (SCALAR OR DOT PRODUCT) (ENERGY & L.C.E)|17 Videos
  • APPENDICES

    AAKASH SERIES|Exercise WORK POWER ENERGY (SCALAR OR DOT PRODUCT) (POWER)|20 Videos
  • APPENDICES

    AAKASH SERIES|Exercise GRAVITATION (EARTH SATELLITES AND ESCAPE SPEED)|35 Videos
  • CALORIMETRY

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) (LECTURE SHEET (ADVANCED)(Matrix Type Questions)|1 Videos

Similar Questions

Explore conceptually related problems

The force required to tow a car at constant velocity is directly proportional to velocity. If it requires 160 W to two a car with a velocity of 4ms^(-1) , the power it required to move the car with a velocity of 9ms^(-1) is

Sand is falling on a conveyor belt at the rate of 5kgs^(-1) . The extra power required to move the belt with a velocity of 6ms^(-1) is,

Gravel is falling on a conveyor belt at the rate of 12 kg s^(-1) . The extra power required to move the belt with a velocity of 5ms^(-1) is

The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are

AAKASH SERIES-APPENDICES -WORK POWER ENERGY (SCALAR OR DOT PRODUCT) (WORK)
  1. A ball of mass 0.2 kg is thrown vertically upwards by applying a force...

    Text Solution

    |

  2. A body is projected vertically up with certain velocity. At a point .P...

    Text Solution

    |

  3. When a body is projected vertically up, at a point .P. in its path, th...

    Text Solution

    |

  4. A unifrom chain of length .L. is placed on a smooth table of height .h...

    Text Solution

    |

  5. A freely falling body takes 4s to reach the ground. One second after r...

    Text Solution

    |

  6. A body of mass 0.1kg released from a height of 50m reaches the ground ...

    Text Solution

    |

  7. A body of mass 100 gm is suspended from a massless spring of natural l...

    Text Solution

    |

  8. A body of mass 2 kg is projected vertically up with a velocity of 100 ...

    Text Solution

    |

  9. A body of mass 4kg is projected vertically up with a velocity of 20 ms...

    Text Solution

    |

  10. A force of 1 N acts on a 1kg mass at rest for 1 s. In another case IN...

    Text Solution

    |

  11. The force required to tow a car at constant velocity is directly propo...

    Text Solution

    |

  12. A body projected vertically up with a velocity of 20 ms^(-1) returns t...

    Text Solution

    |

  13. A block of mass .m. moving with a speed .v. compresses a spring throug...

    Text Solution

    |

  14. The minimum velocity required for a body at the bottom of a vertical c...

    Text Solution

    |

  15. A vertically projected body attains the maximum height in 6s. The rati...

    Text Solution

    |

  16. A lorry and a car of mass ratio 4:1 are moving with KE in the ratio 3 ...

    Text Solution

    |

  17. A body is moving up an inclined plane of angle  theta with an initial ...

    Text Solution

    |

  18. A body of mass 1.5 kg is allowed to slide down along a quadrant of a c...

    Text Solution

    |

  19. A body of mass 2 kg is allowed to slide down along a quadrant of a cir...

    Text Solution

    |

  20. A block sliding along a horizontal frictionless surface with a velocit...

    Text Solution

    |