CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

A person completes half of his journey with speed v1 and rest half with speed v2. The average speed (vavg) of the person is
  1. v1+v22
  2. 2v1v2v1+v2
  3. v1v2v1+v2
  4. v1v2


Solution

The correct option is B 2v1v2v1+v2
In this problem total distance is divided into two equal parts.

Let the total distance be d
Sovavg=d1+d2d1v1+d2v2=d2+d2d/2v1+d/2v2vav=21v1+1v2=2v1v2v1+v2

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image