Home
Class 11
PHYSICS
A lorry and a car of mass ratio 4:1 are ...

A lorry and a car of mass ratio 4:1 are moving with KE in the ratio 3:2 on a horizontal road. Now brakes are applied and braking forces produced are in the ratio 1:2. Then the ratio of stopping timings of lorry and car is

A

`1:1`

B

`1:3`

C

`2sqrt(6):1`

D

`6sqrt(2):1`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WORK POWER ENERGY

    AAKASH SERIES|Exercise EXERCISE - 2|107 Videos
  • WORK -POWER-ENERGY

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (STRAIGHT OBJECTIVE TYPE QUESTIONS)|36 Videos
  • WORK, POWER & ENERGY

    AAKASH SERIES|Exercise PRACTICE EXERCISE (PERFECTLY INELASTIC COLLISIONS)|5 Videos

Similar Questions

Explore conceptually related problems

The ratio of two spheres is 1:2, then the ratio of their surface areas is

Two spheres A and B with masses in the ratio 2:3 and specific heat 2:3 fall freely from rest. If the rise in their temperature on reaching the ground are in the ratio 1:2 the ratio of their heights of fall is

The side of a triangle are in the ratio 1 : sqrt3 : 2 , then the angles of the triangle are in the ratio

Two sopheres whose radii are in the ratio 1:2 are moving with theier velocities in the ratio 3:4. If their densities are in the ratio 3:2, the ratio of their kinetic energies is

AAKASH SERIES-WORK POWER ENERGY-EXERCISE - 3
  1. A body projected vertically up with a velocity of 20 ms^(-1) returns t...

    Text Solution

    |

  2. A block of mass .m. moving with a speed .upsilon. compresses a spring ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  6. A particle in a certain conservative force field has a potential energ...

    Text Solution

    |

  7. A variable force, given by the 2-dimensional vector vec(F)=(3x^(2)hat(...

    Text Solution

    |

  8. Power applied to a particle varies with time as P=(3t^(2)-2t+1) watt, ...

    Text Solution

    |

  9. In a hydel power project, 2000 kg of water passes through the turbine ...

    Text Solution

    |

  10. A body is moving under the expense of a constant power. If .X. is the ...

    Text Solution

    |

  11. A car moves up as hill of incline 1 in 50 with a velocity of 15 KMPH. ...

    Text Solution

    |

  12. Human heart pumps 70 cc of blood at each beat against a pressure of 12...

    Text Solution

    |

  13. An air pump is pumping air in to a a large vessel against a pressure o...

    Text Solution

    |

  14. A machine rated as 150W, changes the velocity of a 10 kg mass from 4ms...

    Text Solution

    |

  15. Find the power of an engine which can draw a train of 400 metric ton u...

    Text Solution

    |

  16. A body is initially at rest. It undergoes one - dimensional motion wit...

    Text Solution

    |

  17. A force F acting on a body depends on its displacement s as F alpha s^...

    Text Solution

    |

  18. An air compressor is powered by a 200 rad/s electric motor using a V-b...

    Text Solution

    |

  19. A body is revolving in a vertical circle with constant mechanical ener...

    Text Solution

    |

  20. A particle suspended by a thread of length .l. is projected horizontal...

    Text Solution

    |