Home
Class 11
PHYSICS
Starting from rest a car moves on a plan...

Starting from rest a car moves on a plane. The coefficient of friction `(mu)` between the tyres and the plane increases linearly with the distance (x) . Kinetic energy (K) of the car depends on x as

A

`K prop 1/(x^2)`

B

`K prop 1/x`

C

`K prop x`

D

`K prop x^2`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (Very short Answer Type Questions)|30 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (short Answer Type Questions-I)|10 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|38 Videos

  • WBCHSE QUESTION PAPER -2019

    CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

A block of mass M rests on an inclined plane. If the coefficient of friction between the block and the plane is mu then the block will slide down the plane under its own weight the angle of inclination is

A block of mass M rests on an inclined plane. If the coefficient of friction between the block and the plane is mu , then the block will slide down the plane under its own weight when the angle of inclination is

A car of mass M moves upward with a constant speed v along an.. inclined road making an angle theta with the horizontal. If mu be the coefficient of friction between the road and the wheel of the car, show that the power of the engine of the car is P= vMg(sin theta + mu cos theta ).

A circular race track of radiu 400 m is banked at an angle of 10^(@) . If the coefficient of friction between the wheels of a race car and the road is 0.2, what is the (i) optimum speed of the race car to avoid wear and tear on its tyres? maximum permissible speed to avoid slipping?

CHHAYA PUBLICATION-WORK AND ENERGY-EXERCISE (Multiple Choice Questions)
  1. A machine, applying a constant power is driving an object along a stra...

    Text Solution

    |

  2. A windmill generates electrical energy. Suppose, the windmill converts...

    Text Solution

    |

  3. A particle moves with a velocity 5hati -3hatj+6hatkm//s under the infl...

    Text Solution

    |

  4. A quater horse power motor runs at a speed of 600 rpm. Assuming 40% ef...

    Text Solution

    |

  5. Energy of a body thrown upward is

    Text Solution

    |

  6. A particle is moving in a straight line such that its retardation is ...

    Text Solution

    |

  7. Starting from rest a car moves on a plane. The coefficient of friction...

    Text Solution

    |

  8. A particle falls from rest under the action of gravity . Variation of ...

    Text Solution

    |

  9. A long spring is stretched by 2 cm. its potential energy is U . If th...

    Text Solution

    |

  10. In which of the following cases the potential energy is defined

    Text Solution

    |

  11. A body of mass m thrown vertically upwards attains a maximum height h....

    Text Solution

    |

  12. For a moving particle (mass m, velocity v) having a momentum p, which...

    Text Solution

    |

  13. The potential energy of a system increases if work is done

    Text Solution

    |

  14. Two bodies of masses 4 kg and 5kg are moving with equal momentum. The...

    Text Solution

    |

  15. A particle of mass m at rest in acted upon by a force P for a time t. ...

    Text Solution

    |

  16. If the linear momentum of a body is increased by 50% , then the kineti...

    Text Solution

    |

  17. one end of a thead of length h has a stone tied to it . Taking the ot...

    Text Solution

    |

  18. Along the surface of a hemispherical container, a small ball is pushed...

    Text Solution

    |

  19. A bucket full of water is rotated in a vertical circle of radius r. i...

    Text Solution

    |

  20. A ball with a momentum p falls on a floor vertically and bounces a num...

    Text Solution

    |