Home
Class 9
PHYSICS
Under what conditions is the magnitude o...

Under what conditions is the magnitude of average velocity of an object equal to its average speed?

Text Solution

Verified by Experts

The magnitude of average velocity of an object is equal to its average speed, only when an object is moving in a straight line.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOTION

    CPC CAMBRIDGE PUBLICATION|Exercise Exercise|15 Videos

  • MOTION

    CPC CAMBRIDGE PUBLICATION|Exercise Additional Question ( Answer the Question )|11 Videos

  • GRAVITATION

    CPC CAMBRIDGE PUBLICATION|Exercise ADDITIONAL QUESTIONS (MATCH THE FOLLOWING)|1 Videos

  • SOUND

    CPC CAMBRIDGE PUBLICATION|Exercise ADDITIONAL QUESTIONS (IV. Answer the following :-)|10 Videos

Similar Questions

Explore conceptually related problems

Define average velocity.

Read each statement below carefully and state with reasons , if it is true of false : (a) The magnitude of a vector is always a scalar , (b) each component of a vector is always a scalar , (c ) the total path length is always equal to the magnitude of the displacement vector of a particle . (d) the average speed of a either greater or equal to the magnitude of average velocity of the particle over the same interval of time , (e ) Three vectors not lying in a plane can never add up to give a null vector .

Knowledge Check

  • Under the same conditions of termperature and pressure the velocity of sound in oxygen and hydrogen are v_(O) and v_(H) . Then

    A
    `v_(O)=4v_(H)`
    B
    `v_(H)=4v_(O)`
    C
    `v_(O)=v_(H)`
    D
    `v_(H)=16v_(O)`

    • Similar Questions

    Explore conceptually related problems

    Under what condition will the total linear momentum of a system be zero ?

    The numerical ratio of average velocity to average speed is

    A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km h^(-1) . Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km h^(-1) . What is the (a) magnitude of average velocity, and (b) average speed of the man over the interval of time (i) 0 to 30 min, (ii) 0 to 50 min, (iii) 0 to 40 min ? [Note: You will appreciate from this exercise why it is better to define average speed as total path length divided by time, and not as magnitude of average velocity. You would not like to tell the tired man on his return home that his average speed was zero !]

    Distinguish between average speed and average velocity of a particle.

    A cyclist starts from the centre 'O' of a cicular park of radius 1 km, reaches the edge of the park, then cycles along the circumference up to the point Q and returns to the centre along QO as shown in the figure. If the round trip takes 10 min, what is the (a) Net displacement (b) average velocity and (c) average speed of the cyclist.

    Under what condition will the current through a series LCR circuit be in phase with voltage?

    Under what condition will the motion of the simple pendulum be simple harmoic ?

    Home
    Profile