Physics-
General
Easy
Question
A body of mass 
moving along a straight line covers half the distance with a speed of 
The remaining half of distance is covered in two equal time intervals with a speed of 
respectively. The average speed of the particle for the entire journey is
The correct answer is:
Let the total distance travelled by the body is 
If 
is the time taken by the body to travel first half of the distance, then
Let 
be the time taken by the body for each time interval for the remaining half journey.
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