Home
Class 11
PHYSICS
A person crossing a road with a certain ...

A person crossing a road with a certain velocity due north, sees a car moving towards east.The relative velocity of the car w.r.t the person is `sqrt2` times that of the velocity of the person.The angle made by the relative velocity with the east is

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`vecv_(c)-vecv_(p)=sqrt2vp`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOTION IN A PLANE

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

  • MOTION IN A PLANE

    NARAYNA|Exercise Level-Vi Integer|9 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise Level 2 H.W|29 Videos

Similar Questions

Explore conceptually related problems

A car is moving with velocity vec v_(c) towards north and a train is moving towards east with velocity vec v_(t) . Find the direction of relative velocity of car with respect to train.

The velocity-time graph of a car moving along a straight road is shown in figure. The average velocity of the car in first 25 seconds is

Knowledge Check

  • A car starting from a point travels towards east with a velocity of 36 kmph . Another car starting from the same point travels towards north with a velocity of 24 kmph . The relative velocity of one with respect to another is

    A
    `12sqrt13kmph`
    B
    `30` kmph
    C
    `12` kmph
    D
    `20` kmph

  • A car is going east wards with a velocity of 8m/s. To the passengers in the car, a train appears to be moving north wards with a velocity of 15 m/s. What is the actual velocity of the train:

    A
    7 m/s
    B
    17 m/s
    C
    23 m/s
    D
    None of these

  • A person driving a car with a speed 72 km/h suddenly sees a boy crossing the road. If the distance moved by car, before the person applies brakes is 5 m, the reaction time of the person is

    A
    0.5 s
    B
    0.10 s
    C
    10 s
    D
    0.25 s

    • Similar Questions

    Explore conceptually related problems

    Define relative velocity of an object w.r.t. another. Draw position-time graph of two objects moving along a straight line, when their relative velocity is (i) zero and (ii) non-zero.

    Two cars are moving in same direction with speed of 40kmh^(-1) Find the relative velocity of first car with another.

    A car is moving with a velocity of 60km//h due east and a train is moving with a velocity of 80km//h due south . For a passenger sitting inside the train , what is the velocity of car appearing to him ?

    The velocity-time graph of a car moving along a straight road is shown in figure. The average velocity of the car is first 25 seconds is

    A car A moves along north with velocity 30 km/h and another car B moves along east with velocity 40 km/h. The relative velocity of A with respect to B is

    Home
    Profile