Home
Class 12
PHYSICS
A motor vehicle travelled the first thir...

A motor vehicle travelled the first third of a distance s at a speed of `v_1`=10 kmph, the second third at a speed of `v_2`=20 kmph and the last third at a speed of `v_3`=60 kmph. Determine the mean speed of the vehicle over the entire distance s.

Text Solution

Verified by Experts

18 kmph
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise Numerical exercise(LEVEL-2)|29 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise Question for descriptiv Answers|7 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise problems|47 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise QUESTION FOR DESCRIPTIVE ANSWER|7 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-III|49 Videos

Similar Questions

Explore conceptually related problems

A bus travelled the first one-third distance at a speed of 10 km//h , the next one-third at 20 km//h and the last one-third at 60 km//h . The average speed of the bus is

A vehicle covers first half of its total distance at a speed 20 kmph. and the other half of the distance at 40 kmph. The mean speed over the entire distance.

A bus traveling the first one-third distance at a speed of 10 km/h, the next one-fourth at 20- km/h and the remaining at 40 km/h. The average speed of the bus is nearly

A car is moving on a straight road covers one third of the distance with a speed of 20 km/h and the rest with a speed of 60 km/h. The average speed of the car is

If the first one - third of q journey is travelled at 20 km h^(-1) , Next one - third at 40 km h^(-1) And the last one third at 60 km h^(-1) then the average speed for the whole journey will be

A vehicle travels half the distance (L) with speed V_1 and the other half with speed V_2 , then its average speed is .

A vehicle travels half the distance (L) with speed V_1 and the other half with speed V_2 , then its average speed is .

A vehicle travels half the distance (L) with speed V_1 and the other half with speed V_2 , then its average speed is .

A man travels two-third part of his total distance with speed v_(1) and rest one-third part with speed v_(2) . Find out the average speed of the man?

A man travels one-third part of his total distance with speed v_(1) and rest two-third part with speed v_(2) . Find out the average speed of the man?

Knowledge Check

  • A vehicle travels half the distance (L) with speed V_1 and the other half with speed V_2 , then its average speed is .

    A
    a. `v_1 + v_2/2`
    B
    b. `2v_1 + v_2/v_1 + v_2`
    C
    c. `2v_(1)v_2/(v_1 + v_2)`
    D
    d. `(v_1 + v_2)/v_(1)v_(2)`
    • AAKASH SERIES-MOTION IN A STRAIGHT LINE -Numerical exercise(LEVEL-1)
    1. A motor vehicle travelled the first third of a distance s at a speed o...

      Text Solution

      |

    2. A particle starts from rest and accelerates as shown in the graph .Det...

      Text Solution

      |

    3. Determine tension T(4) in fig.

      Text Solution

      |

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

      Text Solution

      |

    5. i) Find the average velcity in the time intervals a) 0 to 2 s, b) 0 ...

      Text Solution

      |

    6. Find the average velocity for the time intervals Deltat=t(2)-0.75 when...

      Text Solution

      |

    7. Velocity of a particle at time t=0 is 2 hati m/s. A constant accelerat...

      Text Solution

      |

    8. A car moving on a straight road accelerates from a speed of 4.1 m/s to...

      Text Solution

      |

    9. A solid sphere of radius 2.45m is rotating with an angular speed of 10...

      Text Solution

      |

    10. Graph of velocity (v) versus time 't' for motion of a motorbike which ...

      Text Solution

      |

    11. A girl is standing on the top edge of an 18 m high building. She tosse...

      Text Solution

      |

    12. A ball is thrown upwards with a speed u from a height h above the grou...

      Text Solution

      |

    13. A stone is dropped from top of a cliff.It is seen to hit the ground be...

      Text Solution

      |

    14. If an object reaches a maximum vertical height of 23.0 m when thrown v...

      Text Solution

      |

    15. A stone is thrown vertically upward with a speed of 10.0 "ms"^(-1) fr...

      Text Solution

      |

    16. A ball is dropped freely from rest.If it travels a distance 55m in the...

      Text Solution

      |

    17. An object that is dropped freely from rest travels for 5 seconds.What ...

      Text Solution

      |

    18. A ball is vertically project with an initial velocity 0f 40ms^(-1).Fin...

      Text Solution

      |

    19. An object Is vertically projected with an initial velocity of 20ms^(-1...

      Text Solution

      |

    20. A stone is thrown vertically upward with a speed of 10.0 ms^(-1) from ...

      Text Solution

      |