Home
Class 11
PHYSICS
If a car covers 2/5th of the total dista...

If a car covers 2/5th of the total distance with `v_1` speed and 3/5th distance with `v_2` then average speed is

A

`1/2 sqrt(v_(1)v_(2))`

B

`(v_(1)+v_(2))/(2)`

C

`(2v_(1)v_(2))/(v_(1)+v_(2))`

D

`(5v_(1)v_(2))/(3v_(1)+2v_(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise Exercise -3|31 Videos
  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise PROBLEM|47 Videos
  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise Exercise 2A|30 Videos
  • MOTION IN A PLANE

    AAKASH SERIES|Exercise Practice Exercise|84 Videos
  • NEWTONS LAWS OF MOTION

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE PRACTICE SHEET (ADVANECED) (Matrix Matching Type Questions)|1 Videos
AAKASH SERIES-MOTION IN A STRAIGHT LINE-Exercise -2
  1. A car travelling with a speed 125 KMPH along a straight line comes to ...

    Text Solution

    |

  2. A drunkard is walking along a straight road.He takes 5 steos forward a...

    Text Solution

    |

  3. If a car covers 2/5th of the total distance with v1 speed and 3/5th di...

    Text Solution

    |

  4. A motor vehicle travelled the first third of a distance s at a speed o...

    Text Solution

    |

  5. A motorist drives north for 35.0 minutes at 85.0 km/h and then stops f...

    Text Solution

    |

  6. A person walks along a straight road from his house to a market 2.5kms...

    Text Solution

    |

  7. A particle moving with a constant acceleration describes in the last s...

    Text Solution

    |

  8. A car moving with constant acceleration covers the distance between tw...

    Text Solution

    |

  9. A car moving with a speed of 50 km/hr can be stopped by brakes after a...

    Text Solution

    |

  10. A particle starts moving from rest with uniform acceleration. It trave...

    Text Solution

    |

  11. The reaction time for an automobile driver is 0.7 sec. If the automobi...

    Text Solution

    |

  12. If the particle is moving along a straight line given by the relation ...

    Text Solution

    |

  13. A bullet fired into a fixed target loses half of its velocity in penet...

    Text Solution

    |

  14. For a body travelling with uniform acceleration, its final velocity is...

    Text Solution

    |

  15. If the velocity of a particle is v= At+Bt^2, where A and B constants, ...

    Text Solution

    |

  16. The acceleration of a particle is increasing linearly with time t as b...

    Text Solution

    |

  17. A particle moves along a straight line such that its displacement at a...

    Text Solution

    |

  18. A bus starts from rest with a constant acceleration of 5 "m/s"^2. At t...

    Text Solution

    |

  19. A man walks up a stationary escalator in 90sec. When this man stands o...

    Text Solution

    |

  20. Two trains are each 50m long moving parallel towards each other at spe...

    Text Solution

    |