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))`
Doubtnut Promotions Banner Mobile Dark
|

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 car travels at a speed of 30 km per hour for 30 minutes and then at a speed of 45 km per hours. What is the total distance travelled by the car in 2 hours ?

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

    • Similar Questions

    Explore conceptually related problems

    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?

    Amit goes to his office by car at the speed of 80 km/hr and reaches 15 minutes earlier. If he goes at the speed 60 km/hr, he reaches 15 minutes late. What will be the speed (in km/hr) of the car to reach on time?

    A man starts to travel in order to reach his in laws at the speed of 60 km/h and reaches 1 hours late. If he travels at 80 km/h then the reaches 2 hour early. What is the distance between his home and his in laws. Also find out the actual time taken to travel the distance.

    A train travelled at a speed of 35 km/hr for the first 10 minutes and at a speed of 20 km/hr for the next 5 minutes. The average speed of the train for the total 15 minutes is

    Home
    Profile