Home
Class 11
PHYSICS
A motorist droves north for 35.0 minutes...

A motorist droves north for 35.0 minutes at `85.0 km//h` and then stops for 15.0 minutes He next continues north, travelling 130 km is 2.00 hours. What is his total displacement

A

85 km

B

179.6 km

C

20 km

D

140 km

Text Solution

Verified by Experts

The correct Answer is:
B
`overline(S_(1))=overline(V_(1))t,overline(S)=overline(S_(1))+overline(S_(2))`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise Single Type Question|23 Videos

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise More than One Option Question|7 Videos

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise Level 2 C.W|25 Videos

  • MOTION IN A PLANE

    NARAYNA|Exercise Level-II(H.W)|31 Videos

  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise PASSAGE TYPE QUESTION|6 Videos

Similar Questions

Explore conceptually related problems

A train travels with a speed of 20 m/s in the first 10 minutes, goes 8.5 km in the next 10 minutes, 11 km in the next 10,8.5 km in the next 10 and 6 km in the next 10 minutes. What is the average speed of the train in kilometer per hour for the journey described?

A man travels the first part of his journey at 20 km/h and the next at 70 km/h, covering the entire journey at an average speed of 50 km/h. What is the ratio of the distance that he covered at 20 km/h to that he covered at 70 km/h?

When a person goes to his office from his house with a speed of 10 km/hr, he is late by 20 minutes. When he goes with speed of 15 km/hr, he is late by 5 minutes. What is the distance (in km between his office and house?

A man reduces his speed from 20 km/h to 18 km/h so he takes 10 minutes more than the normal time.What is the distance travelled by him?

A motorist covers a distance of 39km in 45 minutes by moving at a speed of x kmph for the first 15 minutes then moving at double the seed for the next 20 minutes and then again moving at his original speed for the rest of the journey.The x is equal to 31.2 b.36 c.52 d.40

Knowledge Check

  • A train travels with a speed of 20 m/s in the first 10 minutes, goes 8.5 km in the next 10 minutes, 11 km in the next 10,8.5 km in the next 10 and 6 km in the next 10 minutes. What is the average speed of the train in kilometer per hour for the journey described?

    A
    42 kmph
    B
    35.8 kmph
    C
    55.2 kmph
    D
    46 kmph

  • A man travels the first part of his journey at 20 km/h and the next at 70 km/h, covering the entire journey at an average speed of 50 km/h. What is the ratio of the distance that he covered at 20 km/h to that he covered at 70 km/h?

    A
    `4:21`
    B
    `3:22`
    C
    `1:4`
    D
    `3:5`

  • A man travels the first part of his journey at 20 km/h and the next at 70 km/h covering the entire journey at an average speed of 50 km/h What is the ratio of the distance that he covered ta 20 km/h to that he covered at 70 km/h?

    A
    4:21
    B
    3:22
    C
    1:4
    D
    3:5
    • NARAYNA-MOTION IN A STRAIGHT LINE-Level 3 C.W
    1. A motorist droves north for 35.0 minutes at 85.0 km//h and then stops ...

      Text Solution

      |

    2. The coordinates of a moving particle at any time t are given by x = al...

      Text Solution

      |

    3. The relation between time t and distance x is t = ax^(2)+ bx where a a...

      Text Solution

      |

    4. Two cars start in a race with velocities u(1) and u(2) and travel in a...

      Text Solution

      |

    5. A point moves with uniform acceleration and v(1), v(2), and v(3) denot...

      Text Solution

      |

    6. A train starts from rest and moves with uniform acceleration alpha for...

      Text Solution

      |

    7. A car , starting from rest, accelerates at the rate f through a distan...

      Text Solution

      |

    8. An express train moving at 30 m//s reduces its speed to 10 m//s in a d...

      Text Solution

      |

    9. For motion of an object along the x-axis the velocity v dipends on the...

      Text Solution

      |

    10. The friction of the air causes a vertical retardation equal to 10% of ...

      Text Solution

      |

    11. A parachutist after bailing out falls for 10 s without friction. When ...

      Text Solution

      |

    12. A body is dropped from the roof of a multistoried building it passes t...

      Text Solution

      |

    13. A body is projected vertically up with velocity 98ms^(1) after 2 s if ...

      Text Solution

      |

    14. The velocity of a particle is v = v(0) + g t + ft^(2). If its position...

      Text Solution

      |

    15. Ball A is dropped from the top of a building. At the same instant ball...

      Text Solution

      |

    16. An object fals from a bridge that is 45 m above the water. It falls di...

      Text Solution

      |

    17. An elevator is goind up. The variation in the velocity of the elevato...

      Text Solution

      |

    18. The velocit-time graph of a body moving in a straight line is shown in...

      Text Solution

      |

    19. The velocity-time graph of a stone thrown vertically upward with an in...

      Text Solution

      |

    20. The variation of velocity of a particle with time moving along a strai...

      Text Solution

      |