wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If a body covers first half of its journey with uniform speed V1 and the second half of the journey with uniform speed V2 then the average speed is

Open in App
Solution

we know time=distance/speed

First half, time is d/V1

second half, time is d/V2

total time is (d/V1) + (d/V2) = d((1/V1) + (1/V2)) = d((V1+V2) / (V1.V2))

total time = d((V1+V2) / (V1.V2))

total distance = 2d

Average velocity = 2d/ d((V1+V2) / (V1.V2))
= 2 V1.V2 / (V1+V2)

Like if satisfied

flag
Suggest Corrections
thumbs-up
113
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Time, Average Speed and Velocity
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon