Question

A body covers the first half of total distance with a speed v and the second half in double the time
taken for first half. The average speed for whole journey is

Answer 1

Explanation:

Let the total distance be x

Speed = v

Time = t

According to question

Total time taken ,

x/v +2x/v = 3x/v

Average Speed Total distance upon total time

2x/ 3x/v = 2v/3