Home
Class 11
PHYSICS
If a particle travels a linear distance ...

If a particle travels a linear distance at speed `v_(1)` and comes back along the same track at speed `v_(2)`.

A

its average speed is arithemtic mean `(v_(1) + v_(2))//2`

B

its avcrage speed is geometric mean `sqrt(v_(1) v_(2))`

C

its average speed is harmonic mean `2v_(1)v_(2)//(v_(1) + v_(2))`

D

its velocity is zero

Text Solution

Verified by Experts

The correct Answer is:
C, D
`v_(av) = (2v_(1) v_(2))/(v_(1) + v_(2))` and velocity is zero
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    GRB PUBLICATION|Exercise Assertion Reason|12 Videos

  • MOTION IN A STRAIGHT LINE

    GRB PUBLICATION|Exercise Matrix -match|4 Videos

  • MOTION IN A STRAIGHT LINE

    GRB PUBLICATION|Exercise Objective question|168 Videos

  • FRICTION AND CIRCULAR MOTION

    GRB PUBLICATION|Exercise Comprehension type|11 Videos

  • MOTION IN TWO AND THREE DIMENSIONS

    GRB PUBLICATION|Exercise All Questions|210 Videos

Similar Questions

Explore conceptually related problems

If a particle travels the first half distance with speed v_(1) and second half distance with speed v_(2) . Find its average speed during journey.

If a paritcle travels distance S_2 and s-2 with speeds v_1 and vec _2 in the same direction, then average speed of the particle is …………………………………. .

A particle covers half of its total distance with speed v_(1) and the rest half distance with speed v_(2) Its average speed during the complete journey is

If particled travels n equal distances with speeds v_(1), v_(2),…v_(n) , then the average speed vec v of the particle will be such that .

A particle travels first half of the total distance with constant speed v_1 and second half with constant speed v_2. Find the average speed during the complete journey.

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 particle covers half of its total distance with speed v_1 and the rest half distance with speed v_2 . Its average speed during the complete journey is.

A particle moves in a straight line from A to B (a) for the first half of distance with speed v_(1) and the next half of distance with speed v_(2) . (b) for the first one-third distance with speed v_(1) and the next two-third distance with speed v_(2) . (c ) for the first one-fourth distance with speed v_(0) , the next half of distance with speed 2v_(0) and the last one-fourth distance with speed 3v_(0) . Find the average speed in each case.

A person travels along a straight road for the first half length with a constant speed v_(1) and the second half length with a constant speed v_(2) . The average speed V is: